Aquastar Benthos I Professional 1000 meter

Case Diameter: 42 mm
Case Height: 15.5 mm
Case length: 43 mm
Lug Width: 20.5 mm
Movement: Modified A.Schild AS2162 with 60 min flyback dive
timer. 25j, automatic, 21,600 bph, 45 hr power reserve
Case material: Stainless steel, one piece design
Crown: Screw down
Bezel: Uni-directional, indexed w/60 clicks
Water resistance: 1000 meters
Vintage: 1980 (approx)

This is an exceptional watch in most every way, which makes the
manufacturer's choice of hands so disappointing. The hour and
minute hands are nearly identical in size and shape, making it all
to easy to read the time incorrectly.

Lemania also produced a version of this watch, virtually identical
except for the Lemania signed dial and case.