Benrus Ultra-Deep

Case Diameter: 38 mm
Case Height: 11.5 mm
Case length: 47 mm
Lug Width: 19.5 mm
Movement: Benrus FE2D1
automatic, 17j
Case material: Stainless steel
Crown: Screw down.
Bezel: Bi-directional, no index
Water resistance: 666 feet
Vintage: 1970's

This watch is built on a generic
Swiss dive watch case that was
widely used in the '60s-'70s. It's the
same case used by this Wittnauer
and many, many others.

What is interesting about this one is
it has a permanently fixed,
pressed-on case back, just as the
U.S. Military issued Benrus Types I/II
used.