Waltham, in cooperation with Douglas Aircraft,
has developed the first ever twelve-minute mechanical clock.
We have taken our basic aircraft design and incorporated a tote hand
that revolves every twelve minutes vs. sixty seconds.
This allows pilots to better gauge the amount of time elapsed.
The stop, start and flyback of second and minute hands do not disturb the time of day.
The lever for adjusting rate is accessible without removing the clock from its case.
The clock contains an anti-magnetic, temperature compensated hairspring to insure accuracy.
Not affected by environmental extremes or system failures
Lighting: per Douglas Aircraft Company Spec. 7936766
Weight: 12 ounces maximum
Case Finish: Black anodize per MIL-A-8625 Type II, color no. 37038 or Federal Standard 595
Jewels: 20-five more than required by military specifications to insure accurate performance
All Waltham mechanical aircraft clocks are domestically produced and are certified to conform to FAR#52.208-1. They contain domestic jewels.
Operation and Installation
To wind clock, rotate winding knob in a clockwise direction until a stop is reached
To set clock, pull winding knob out and rotate as required to set time of day hands. Knob will return to winding position when released.
Pin A: 5 Volt AC or DC
Pin B: Common Ground
Custom Connectors Available
2364 South US Hwy 231 Ozark, AL 36360 - USA Telephone: 334-774-3584 Fax: 334-774-7083