If you haven't already, we have a lot of affection for the horological "little guys" here at analog/shift. Even when those "little guys" are downright monstrous lumps of steel.
This Aquastar Benthos is just such a monster. Built from the ground up as a no-holds-barred diver for extreme saturation (as the name suggests, 1000M of it), it can't be considered a pretty watch by any means. But if you're being serious about your tool watch design, aesthetics are very much a secondary thought (consider the Omega PloProf 600, for example). Unlike so many of the modern boutique brands that are building chunky steel divers with excessive specifications for contemporary desk divers, the story of the Aquastar goes back to 1962, the very beginnings of SCUBA diving as a sport, and the dawn of the golden age of diver's watches.
The predecessor to this model, the Benthos 500, was the world's first diving watch to be rated at 500M, a tremendous accomplishment for a small manufacture in the 1960s. Utilizing a monopusher design, both the 500 and 1000 models have a 60 minute timing totalizer with flyback function built into the movement, along with a traditional unidirectional rotating diver's bezel. The 1000 model we have here is indeed a bit of righteous overkill, in the greatest of ways.
Stainless Steel case is approximately 42mm (excluding crown).
Overall condition: Case is in very good condition over all, showing light signs of wear consistent with age and use. Original dial is in fantastic condition, with a brilliant even patina across the hour markers. Original hands are in similarly excellent condition with matching lume. Bezel shows light marks from wear. Signed case back and unsigned crown.
Includes black IsoFrane style rubber strap and two nylon straps by Crown & Buckle.