Chelsea Radio Room Clock in Brass Case

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Chelsea Radio Room Clock

Pre WW II Period

12/24 Hour Face

Chelsea Radio Room Clock  Pre WW II Period  12/24 Hour Face

The stand, a $75.00 value, is included!

It has been quite some time since we’ve been able to offer one of these exceptionally fine Chelsea Radio Room clocks.  The clock’s serial number 221476 dates it to 1935-39. In 2022 it was cleaned and serviced by Chelsea in Boston and is keeping excellent time.  The movement with 12 jewels has machine-cut pinions and wheels, on magnetic Breguet-type hair spring and compensated escapement. This makes a very high-grade precision timepiece. And we were particularly pleased to find one of these fine clocks housed in a brass rather than the phenolic case in which these clocks of that period are usually housed.  The heavy forged brass case has a screw-on bezel with a maximum diameter of 7 ″ at the rear and is 2 3/4″ deep and 7″ at the front bezel.

Chelsea Radio Room Clock  Pre WW II Period  12/24 Hour Face

The sinking of the Titanic resulted in the Radio Act of 1912, requiring 24-hour radio watches at sea. The disaster also led to this clock design, which features two 3-minute periods marked in red, indicating Morse Code silence periods when only distress, urgent, and safety signals could be transmitted.  There is an additional white hour hand, called a Zulu hand, which can be set to Greenwich Mean Time or any other time zone you choose.


Chelsea Radio Room Clock  Pre WW II Period  12/24 Hour Face

The clock runs for a full 8 days when fully wound, but because of its age, we recommend it be wound about every four to five days for best timekeeping results. The screw-on bezel takes care in fitting to the case. The bezel and case threads are fine and there are a few places of resistance, but the bezel will fully seat if care is taken. SPECIFICATIONS: Forged bronze case 7-inch face and a 5 1/4 inch viewable area. The silver face is acid etched in like new condition with Arabic 12 and 24-hour numerals and lettering filled in black. The ultra-precision 8-day, twelve jewel movement, a compensated balance wheel and hairspring, and silver hands and sweep black second hand are all in excellent condition.

Side Views

Case max diameter   7 “
Front Bezel  7 “
Dial 6″      Visible Area  5 1/4 “      Depth  2   3/4”
Weight   6 lbs.  8 oz.

These exceptional Chelsea Radio Room clocks in excellent condition and in brass cases have become very hard to find.  They make wonderful and memorable gifts for that special occasion

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Shipping & Packaging

The cost of shipping, packing, handling, and insurance to your destination, will be calculated point to point and is an additional charge. You may email us to get these costs. We price our shipping honestly, but we expect to be reimbursed for the nominal cost of packaging materials and handling.

Our Unconditional 'No Nonsense' Guarantee

If not completely satisfied with your purchase it may be returned, if without damage, within three days of receipt in its original packaging. Return items must be insured for their full value. Only a prior email authorization by us for the return is required. Shipping charges are refundable if due to our error within the continental United States.

International buyers welcome, but inquire first. We have satisfied customers worldwide.

Standard Forms of Payment

Bank wire transfer, cashier’s check, money order, or personal check in which case the item will be held until cleared. Our prices are quoted net to us so that the use of credit cards or PayPal incur extra charges. Terms on overseas sales are different.

Established in 2003

Celebrating 18 Years of Exellence in Nautical Antiques

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