Benrus Ultra-Deep

Case Diameter:  41 mm
Case Height:  11.5 mm
Case length:  43 mm
Lug Width:  18 mm
Movement: Benrus GO2D (ETA
2472), Benrus signed rotor, 17j
automatic, 18,000 bph, 42 hr
power reserve
Case material: Stainless steel
Crown: Non-screw down
Bezel: Bi-directional, not indexed
Water resistance: 666 feet
Vintage: '60s
This is an interesting watch, I've only
seen one other example of this model.
The case is the same as the popular

"Snorkel" dive watches, and very
similar to the original Doxa SUB 300.

Click here for comparison photos.