The Hamilton Khaki Navy Scuba Auto 40mm (H82335131) is a compact diver-style automatic. Hamilton’s official page lists a 40 mm stainless steel case, 12.95 mm thick, with 20 mm lug width, a sapphire crystal with anti-reflective coating, a screw-down crown, Super-LumiNova and 100 m (10 bar) water resistance. The H-10 automatic caliber gives an 80-hour power reserve, and the watch is fitted to a stainless steel bracelet with a folding clasp. Hamilton lists it at $975 in the US.

Wristwatch Review, the only independent review we found for the 40 mm Scuba Auto, found it compact for a diver at about 13 mm thick while still having good wrist presence, and found the 24-hour scale on the blue version legible. It noted that the 100 m rating is lower than the 300 m of the 43 mm Scuba models.

The Khaki Navy Scuba Auto 40mm is part of Hamilton’s current collection and is listed on the official store.