WW2 Waltham watch, US Ordnance Department issue, OG-70791, 9 jewel 6/0 '42, 282. 
 
This example of a WW2 US Ordnance Department Waltham is in good original condition and looks excellent,
making it a highly appealing example.
 
Functioning very well, keeping time to within +15 second a day.
 
Please see the images as these compliment and aid the description provided below.
 
Dial:
The dial has the original lume and is in good condition for its age.
 
Hands:
The hands are in good condition with original lume.
 
Glass:
The crystal is original and in excellent condition.
 
Crown:
An original large crown in excellent condition.
 
Case:
The stainless case is in excellent condition with no large scratches.
 
Caseback:
Ordnance department markings and serial number, only light surface scratching.
 
Strap:
A beautiful stainless steel Bonklip strap from the era.
 
Movement:
The movement is keeping excellent time, with an average gain of around +15 seconds a day. The amplitude is 270 degrees which is good for a watch of this age. The beat error is 6.5 m/s. The watch won't need a service for some time.
 
Case dimensions
Case width: 32.5mm
Case width with crown: 34.5mm
Case length: 30mm
Case Depth: 10.5mm
Case length lug to lug: 36.3mm
Lug width: 16mm