WALTHAM AIRCRAFT CLOCK
CDIA (CENTRAL DATE INDICATOR AERONAVAL) – 1941
Approximately 134.000 CDIA aircraft clocks where produced and equipped with Waltham’s famous 37 size, 8-day movement, housed in a black aluminum case secured to the aircraft’s instrument panel. The crystal glass was secured by a bezel and gaskets to seal the movement against dust. The bezel assembly enclosed the civil date quick set button, positioned at the 15 o’clock numeral. The winding and setting crown was positioned adjacent to the quick set button. The dial had a lusterless black finish with printed indexes and numbers. A Munsell Green paint was used on the odd-hour numerals, minute indexes, and the civil date and numerals indexes. A yellow fluorescent material was used on the eve-hour indexes and numbers and the diamond-shaped, odd-hour indexes. Respectively, the civil date had the words 8-days and Civil Date in green; the hour, minute, and sweep second hands were also painted with yellow fluorescent material. The civil date, 31-day sub-dial was located at the center of the main dial, with numerals and indexes. Large Arabic numerals indicated the even-numbered hours and, small Arabic numerals indicated the odd-numbered hours. The CDIA was mounted on board of several U.S. Navy Airplanes, such as the F6F Hellcat, as well as the bombardier B24 Liberator, in services throughout World War II.
- Black metal lusterless dial with printed yellow fluorescent indexes and numbers. Odd-hour numerals, minute indexs, and the civil date numerals and indexes are painted in Munsell Green.
Yellow fluorescent hour, minute and sweep second hands.
- The civil date sub-dial is located in the center.
- Waltham mechanical 37 size, 8-days double barrel movement
- 15 jewels
- Civil Date quick set button
Power reserve 8 days
- Black aluminium standard metal case
- Bezel fixed with 8 screws
- Crystal glass with spacer and gaskets provided dust proof seal
Winding and setting crown base extended horizontally beyond the front of the clock
WALTHAM ORIGINAL WATCHES
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WALTHAM WATCH COMPANY SA OFFICES & CONTACTS
WALTHAM WATCH COMPANY SA is a high-end watch manufacturer with offices in Switzerland - center of world excellence in clock and watch production - and a leader in precision mechanical watchmaking for the past 160 years.
Since 1850, the legendary American brand has been setting modern standards for the mass production of clocks and watches, and has over one thousand patents in the sector.
Our offices are based in Switzerland. The headquarter is based in
Mendrisio (CH) /Switzerland.