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Chelsea US Navy WW II Mark I Deck Clock Rose Colored Brass

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Chelsea US Navy WW II Mark I Deck Clock Rose Colored Brass

CHELSEA WW II U.S. NAVY MARK I DECK CLOCK UNIQUE ROSE COLOR
COMPLETE EXAMPLE 3 PIECES

 

Chelsea 1940 US Navy MK I Deck Clock on stand image

Naval Observatory Cartouche 1940

Fully Restored Presentation Quality!

STAND INCLUDED A $75.00 VALUE

The WW II Chelsea MK I Deck Clock's case was made differently than the ubiquitous Seth Thomas version. It is more refined and far better looking in this unique polished brass, forged, Rose colored case.

DIMENSIONS: 5 1/2" Diameter of face 3 1/4" Deep 8" Full Diameter Weight 10 lbs 6 oz 

Presented is a unique Rose colored completely restored example of a Chelsea, back winding, WW II, Navy MK I Deck Clock with a hinged front that is complete with two backing plates. One of these plates acted as a water tight cover and shock absorber and the other mounts the case to a bulkhead or wall. It is rare to get these clocks with their back cover plate and finding one with the original mounting plate is an even rarer exception. What is missing is the white plastic gasket that made the clock waterproof and suitable for mounting on an open deck. The Chelsea version of what was a supposedly standardized mil-spec design is more refined and has a different hinge arrangement than the thousands of nickel plated clocks that were made by Seth Thomas. This clock is in rarely seen Rose colored polished brass. It has been recently polished and lacquer coated to preserve its luster. The movement, serial number 278272, dates from 1940. It has been recently serviced by a clock smith who specializes in military ships clocks, and is keeping very good time compared to a quartz comparison watch.  The rest of the restoration was carried out by our shop  which specializes in the brass versions of these clocks which we alone provide. 

Navy MK I DECK clocks of WW II were manufactured in accordance with military specifications 18C-11 and 18C -13. This Chelsea example has modifications which are unique. The front section holds the movement and has an integral stud on the backing plate that acts as the hinge. This compares to the more common Seth Thomas version which uses a removable pin, and has a nickel plated case. In both designs, the back of the front section has all the controls on the rear. 

The Navy MK I Deck Clocks' 3 official pieces image
A plain brass case, back plate and shock absorbing damper. 3 pieces total. Missing gasket.

 

Example of Seth Thomas MK I casting uses a separate pin as a hinge

 

Both Andrew Demeter in his definitive book, "Chelsea Clock Company, the first 100 years" and Marvin Whitney in his encyclopedic work, "MILITARY TIMEPIECES" say that these clocks were chromium plated up to 1941 when cases were switched to Bakelite, a phenolic. It is our opinion that they were nickel not chrome plated.

Markings on face of Chelsea 1940 MK I Deck Clock image
Markings on face
 

Mark I Deck clock made by Chelsea is a rare find, as is a clock of this age and service at sea to be found in this fine condition. It is perfect for a collector of military pieces or as an important gift.

Movement of 1940 Chelsea MK I Deck clock image
Chelsea Model 17K, 11 jewel 8 Day Time Only Movement
 


Beneath the hand arbor is etched: 

MARK I DECK CLOCK
U.S. NAVY
(NO) 8374 
 1940

(NO)represents the Naval Observatory which means the clock not only met the military specifications, but also met the stringent standards of this institution which maintains the Nation's Time Standard. At the bottom of the dial it is marked Chelsea.

The following controls are accessed on the back:

  • Fast - Slow adjustment. To regulate turn towards S to Slow and vice versa
  • Stop - allows for precision setting with master clock
  • Set - moves hands
  • It has a Chelsea Model 17K, 11 jewel 8 day movement that is wound, set and stopped through a slotted dust cover at its rear which closes. A separate start/stop mechanism allows it to be synchronized with a master time piece. 

    The removable vibration dampener backing plate is attached to the bulkhead plate by six screws and holds the front case secure by a wing nut dog.

    Back view of 1940 Chelsea MK I Deck clock showing dust cover over the controls image

    Back view of Chelsea MK I Deck clock showing dust cover over the controls

    CONDITION: This example has seen about 76 years of service, much of it at sea, but has the appearance of being new. The face is in excellent condition, the lens is clear as crystal when viewed close-up. The dots over the numbers are still painted with irradium for night viewing. This is usually removed because it was radio active. The movement has been recently serviced by a clock smith that specializes in military ships clocks and is keeping good time. A Chelsea key is included. The case has been recently polished and lacquered.

    NO NONSENSE WARRANTY: We guarantee that this clock will be working on arrival and that our description is entirely accurate or your money back. The only conditions are that an email authorization be obtained within three days, and that the instrument is returned in its original condition and packaging, and insured for its full value. Shipping charges within the continental United States are included in this offer if the error is ours. This does not affect our policy on shipping damage which is discussed below.

    PACKAGING: We take great care in packaging our clocks for shipment which includes bubble wrap, placing in a box, and then placing in a larger box surrounded by impact absorbent material. However, we are not responsible, once it is turned over to the carrier. Full Value insurance is required. In the event of damage due to shipping we will assist you in all respects even to filing a claim in your behalf.


    This U.S. Navy black face clock has a dramatic appearance and makes a perfect gift or as an addition for your den wall or in a collection. 

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