Extraordinary Performance, Exceptional Value

Chelsea Clock has built a 115-year reputation as the American leader in precision mechanical timekeeping. We are proud to offer an array of key-wind mechanical clocks to satisfy a number of tastes and budgets. Our famous Shipstrike Mechanical Clock boasts many of the same hallmark qualities as our signature Ship’s Bell Clock, but at an exceptional value. Here are some of the features of this Chelsea timepiece:

• Heavy, solid forged brass case, hand lacquered and polished to resist tarnish
• Hand-crafted German-made timekeeping mechanism
• Hinged bezel for easy opening
• Chiming mechanism (chimes traditional Ship’s Bell code)
• Solid metal gears and parts
• A 5-jewel movement, incorporating tiny gem crystals to reduce friction and wear
• Aluminum dial with painted black numerals
• Full, two-year warranty against defects in material and workmanship

We are pleased to offer two different sizes of  Shipstrike Mechanical Clocks, as well as a full complement of hand-finished hardwood bases for desk or mantle display.

 Trying to decide between a Chelsea Clock mechanical clock and a quartz clock? The differences between the two mechanisms are vast, and offer distinctly different experiences, depending on your preferences. Yet no matter which mechanism you choose, you can be sure you’re bringing home an exceptional timepiece that will stand, well. . .the test of time.

 To help you decide, here’s a quick overview of the Chelsea Clock Ship’s Bell Mechanical Clock and our famous Shipstrike Quartz Clock.  While both are hand assembled right here in the original factory in Chelsea, Massachusetts, by our master clockmakers, there are subtle – and not-so-subtle – differences that make each of these timepieces truly unique.

On the outside, both the Chelsea Clock Ship’s Bell and Shipstrike clocks share many of the same qualities that have made the Chelsea name synonymous with exceptional beauty and quality. Both cases are made from heavy, solid forged brass (not cast or stamped from sheet brass), hand finished and lacquered to last a lifetime. And both are available mounted on one of our solid American hardwood bases, hand rubbed to a lustrous rich mahogany or cherry finish. And, of course, both strike the traditional Chelsea Clock Ship’s Bell chimes: eight bells at 4, 8, and 12 o’clock to mark the end of a mariner’s watch, with one bell for the first half hour after, plus one additional bell with each subsequent half hour.

But the main difference between these two timepieces is the internal mechanism, which is most clearly reflected in the price of each piece. The Chelsea Ship’s Bell Clock features a key-wound 8-day movement, while the Shipstrike Clock is powered by a battery-operated quartz movement. The Ship’s Bell Clock features our patented, hand-assembled mechanism, comprised of some 364 precision brass parts – many plated with gold to resist corrosion – as well as an 11-jewel escapement.   There is no sound quite like a Chelsea Clock Ship’s Bell chime; the solid forged brass case resonates a rich, mellow tone when the clock’s leather-covered hammer strikes our patented Chelsea bell.

On the other hand, the Chelsea Clock Shipstrike Quartz Clock features a battery-operated precision German quartz movement, offering owners the convenience of an automatic, non-winding timepiece. While Shipstrike Quartz version also strikes the famous Ship’s Bell chimes, the striking mechanism is powered by an electronic current rather than by a mechanical escapement and mainspring.

Another difference between these two Chelsea clocks is in their dials: the Ship’s Bell Clock boasts a solid brass plate, hand silvered with acid-etched, enameled numerals, while the Shipstrike Quartz Clock features a machined dial with imprinted numerals. And finally, the Ship’s Bell Clock comes with a Chelsea Clock five-year warranty, while the Shipstrike Quartz Clock carries a two-year warranty.

But whether you choose a Chelsea Ship’s Bell or Shipstrike Quartz clock, there’s absolutely no difference between these two pieces when it comes to your satisfaction. You’ll be acquiring a quality timepiece made by one of America’s most renowned clockmakers, guaranteed to bring you many years of enjoyment!

 When you think of Art Deco, your thoughts may immediately flash to images of New York City’s Chrysler and Empire State Buildings. These iconic structures are powerful tributes to this distinct design aesthetic. But nearly a century since the world was first introduced to its eclectic form of elegance, Art Deco design continues to capture the imagination with its alluring glamour and flare.

 Emerging from Paris in the 1920s, the Art Deco movement had a profound impact on many areas of design throughout the 1930s and beyond, including architecture and interior design, industrial design, fashion and jewelry, graphic arts and more. Today, influences of this stylish modernism can be found in everything from broaches to bridges. And nowhere is it more evident than in the geometric shapes and brilliant finishes that define the Chelsea Clock Mayfair Clock.

 The Mayfair Clock celebrates Art Deco with its bold, spherical shape, flanked by two smaller cylindrical bronze accents, all gracefully arranged atop a three-tiered stepped rectangular base. Featuring a heavy forged brass case, the Mayfair is hand crafted from solid brass and boasts a gleaming nickel-plated finish. Its dial, which is solid brass that is hand-silvered, features acid-etched, black enameled Art Deco numerals. Streamlined jet black ornamental hands finish this grand timepiece, creating a dramatic statement that is truly timeless.

 For those with an affinity for the lavishness of this bygone era, but the desire for modern convenience, the Mayfair Clock offers a precision German-engineered quartz movement – ensuring accuracy with carefree maintenance. Who says glamour can’t be practical?

 If the style of Art Deco is your style, take a closer look at this exceptionally made Chelsea Clock mantel clock, ideal for home or office.

The Embassy clock is an opulent mantle clock that pays homage to the allure and charm of the 19^th century clocks coveted by France’s elite class. Its profile, inspired by the fashionable clocks that often accompanied aristocrats in their horse-drawn carriages or assumed a place of prominence atop grand mantels, reflects the stylistic rectangular design and sturdy construction that popularized these exquisite timepieces.

The style of the Embassy Clock has made it a classic favorite that endures today. Its traditional design is expertly shaped from quality brass by Chelsea Clock’s master craftsmen. This lavish timepiece features distinctive detailing such as handsome vertical stripes in contrasting matte and sheen finishes, graduated molding at the top and base, and stepped feet, making it a welcome addition to fireplace mantels, bookshelves and desks. The Embassy Clock’s smooth, broad cover offers ample room for personalization, including elegant monogramming and line engraving.

While the design of the Chelsea Clock Embassy Clock captures much of the allure and charm of its French predecessors , this particular piece integrates a modern timekeeping mechanism for optimum performance and convenience. A precision German-engineered quartz movement provides quiet accuracy and quick, easy access for adjustments to time.

The Embassy Clock is a yet another fine example of how Chelsea Clock master clockmakers continue to blend classic design with state-of-the-art technology, and bring elegant timekeeping into homes and offices everywhere.

Chelsea clocks use a hammer and gong to produce our trademark sound. The strike hammer rises and falls onto a circular gong in the back of the case. If the sound is not a clean stroke, with a clear ringing tone, it can be adjusted as follows.

On the back of the case you will see a circular plate, held in place by three screws. Removing this plate allows a clear view of the hammer and the gong. At rest, the hammer head should be poised about 1/8″ above the circular gong. This allows the hammer to fall onto the gong and bounce clear, allowing the bell to ring after being struck. A slight adjustment of the wire that the hammer head is mounted on is all that is necessary to improve the sound quality. With a little patience and care, you should be able to restore our trademark Chelsea Clock sound to your clock’s strike. Move the hands ahead and allow the clock to strike several times while the plate is off, observing the action of the strike hammer. On the half hour strike, you should note that the strike hammer remains up in the air at the completion of the cycle. Move the minute hand ahead to the hour position. After the clock strikes the hour, the hammer will be at rest above the circular gong.  Make a slight bend on the brass wire that the hammer head is mounted on to affect the change in the sound quality. When you are satisfied with the sound, replace the inspection plate with the three screws. Check the strike sound one or two more times, making sure that the hammer doesn’t rub on the inside of the inspection plate.

Enjoy the sound of your Chelsea clock.

A symbol of solidarity and strength, the Chelsea Clock Presidential Clock is a magnificent timepiece that celebrates the enduring spirit of both visionaries and everyday people who dare to dream of making a difference. . .and do.

Throughout history Chelsea Clock timepieces have graced the homes of dignitaries, and stood in faithful observance during encounters among world officials. Our clocks’ visual appeal, combined with their rich history are just some of the reasons Chelsea clocks are often chosen as cultural ambassadors for the United States. In fact, Chelsea timepieces have been offered as official gifts by many of our country’s presidents.

In both name and design, the Presidential Clock reflects significant achievement in the art of superb clock making for which Chelsea Clock is world renowned. This exquisite piece brings stately elegance to any room, with its hand-finished solid forged brass case and rich, solid mahogany base. Boasting a 4.5” dial with traditional black Roman numerals, this classically-styled piece features a quality German-engineered quartz movement.

Strength. Precision. Endurance. These are but some of the many qualities that define a great leader. They are also some of  the same characteristics that shape the Chelsea Clock Presidential Clock and help make it a lasting symbol of accomplishment for those fortunate enough to receive it.

“Voyage: (n) 1. a journey, travel, or passage, esp one to a distant land or by sea or air.”

There are times when limitations overpower or inhibit change. Then there are those wondrous instances where certain restrictions only serve to motivate us more to push beyond what’s easy or expected, often leading to exciting new solutions. Such is the case with our Voyager Collection of clocks and barometers. Through the years, many of our customers have expressed their frustrations with outfitting their boats when cabin or dash space is limited. We, in turn, accepted this challenge and set to work on adapting our products to best meet their needs. The result: a new collection that offers the same exceptional quality and performance for which Chelsea Clock is world renowned, but in a more compact size and format.

The intensity, commitment and challenge of voyaging naturally leans toward no-frills, no distractions and no fuss — just man conquering wind and sea. Those same requirements are what lead us to create a nautical line, with a total focus on a mariner’s duties, attainable for any Chelsea Clock admirer. The Voyager Brass Nautical Clocks and Barometers place practice over theory, function over form, voyaging over cruising. Performance is paramount.  Made for use in the tight space of a captain’s quarters, we crafted the nautical clocks for easy accessibility, agility to fit in various spaces, and with minimal upkeep.

With pronounced clarity and simplistic contemporary style, the austerity of the design is in it’s adherence to necessity. Compact, clean yet still a figure of Chelsea Clock’s tradition of excellence.    Matte-finished forged brass, beveled glass, and a clear noble face prove the pieces to be reliable instruments for any travel on the sea.

 The Voyager Clock and Barometer Set on a Mahogany Plaque blends in with the wooden panels that line a vessels quarters, and it’s solid properties attribute to its high-resistance to deterioration which is why it has been a cornerstone in boat construction.  Those details that represent the seafarers environment make these ideal nautical gifts to grace staterooms, cabins, quarters and the rooms of your life.

The Ship’s Bell Clock is a Chelsea Clock classic. First patented in 1898, the movement of the clock is what the Company calls a “4L”, which includes a distinguished chime coordinated with a mariner’s bell code for keeping watch at sea. Alerting mariners to time during their “watch” by employing the unique Ship’s Bell chime earned the Company the name “Timekeepers of the Sea.”

“The patents have been carried over from generation to generation,” said Dan Der Marderosian, Manager of Engineering Services. The Ship’s Bell movement at Chelsea Clock is one of the last remaining mechanical movements still produced in the United States. There was a time in the mid 1900s when the American clock industry included many companies crafting such timepieces, many of them right here in New England. Slowly these companies went out of business – as with many handcrafted trades they could not compete with the rising costs of labor, the rise of industrial manufacturing, and specifically in the clock industry, the introduction of the quartz movement.

Early 1900s Drawing - First Ship's Bell Mechanism

Der Marderosian comes from the automotive engineering field which focuses on high volume manufacturing and computer aided design — a stark contrast to Chelsea Clock’s craftsmanship that has been passed down to each new member of the team through hand drawn designs. “From a Mechanical Engineer’s perspective the precision, gears, pinions, and levers were quite interesting to me,” said Der Marderosian.

Dan Der Marderosian Manager, Engineering Services at Chelsea Clock

He spoke of the detail that goes into a mechanical clock especially one with a striking mechanism that the Ship’s Bell Clock is revered for and the intricacies involved with the bells striking on a cycle. Before the computer age, Chelsea Clock draftsmen would construct hand drawn blueprints of the clock’s internal jewels and pieces. They articulated with the aid of the pencil how those pieces coincided for the clock’s precise motion. Those drawings are still used today as the basis of the internal architecture of the Ship’s Bell Clock. The draftsmen were yesterday’s engineers, and today Chelsea Clock has preserved their work along with the original patents to craft the Ship’s Bell Clock.

Just as the Ship’s Bell Clock is viewed as a family’s legacy being passed down from generation to generation; Der Marderosian is one of the people at Chelsea that has “inherited” the clock’s historical mechanical movement and the original drawings. He is currently seeped in analysis, lining clocks up along the edge of his desk to methodically calculate and record the complexities of each piece. His practice will ensure the designs and theory carved out by previous Chelsea Clock makers will endure for ages. “The Ship’s Bell Clock – we inherited it. And I am examining it from a technical and engineering standpoint so that main design is maintained and understood by others in the Company.”

With 360 plus gold plated parts, and the assembly of each done by hand, some of the knowledge behind the designs was passed on verbally and the art work of each individual draftsman was drawn with that in mind. Der Marderosian and his team are reviewing the previous works of each draftsman, some over 100 years old. Their efforts will ensure that the knowledge and craftsmanship behind Chelsea Clock’s flagship timepiece will be preserved for the next 100 years to come.

Each Ship’s Bell Clock is made and assembled by hand at our factory in Chelsea, Massachusetts. It takes up to four weeks to make each timepiece, which is made with over seven pounds of solid brass and hundreds of precision, gold plated parts. The clock strikes the Ship’s Bell Code* with a rich, nautical tone reminiscent of life at sea.

*Mariners have used a unique bell code to tell time at sea for hundreds of years. The code is based on the crew’s typical workday routine while the vessel is under way. A ship at sea requires constant attention throughout the day’s twenty-four hours. The day is therefore divided into six four-hour periods, each called a “watch.” Similarly, the crew is segmented into three divisions. Division members then stand their individually assigned duties on two watches per day, with eight hours off duty between watches. To rotate each division’s watch times, the Evening Watch is periodically divided into two watches. These are called Dog Watches because they “dog” the watch schedule for all divisions ahead by one watch period.

First Watch 8:00 p.m. to 12:00 a.m.
Mid-Watch (also Black Watch) 12:00 a.m. to 4:00 a.m.
Morning Watch 4:00 a.m. to 8:00 a.m.
Forenoon Watch 8:00 a.m. to 12:00 p.m.
Afternoon Watch 12:00 p.m. to 4:00 p.m.
Evening Watch 4:00 p.m. to 8:00 p.m.

The watch officer struck the ship’s bell every half hour to apprise the crew of the time. A single bell denoted the end of the first half hour and one bell was added each half-hour. Eight bells therefore signaled the end of each four-hour watch. Like centuries of seafarers, you’ll soon know the time when the clock chimes, even if you can’t see it.

8 bells 12:00 4:00 8:00
1 bell 12:30 4:30 8:30
2 bells 1:00 5:00 9:00
3 bells 1:30 5:30 9:30
4 bells 2:00 6:00 10:00
5 bells 2:30 6:30 10:30
6 bells 3:00 7:00 11:00
7 bells 3:30 7:30 11:30