The Hamilton Khaki Field Expedition 41mm (H70315510) is the larger, white-dial version of the Expedition with a rotating compass bezel. Hamilton’s official page lists a 41 mm stainless steel case that is 11.5 mm thick, with 20 mm between the lugs, a sapphire crystal with anti-reflective coating, an open case back, a screw-down crown and 100 m (10 bar) water resistance. The H-10 automatic caliber gives an 80-hour power reserve with a Nivachron balance spring. It is on a cow leather strap and the US list price was reported at $1,195 by search listings, while the current price is not shown for this past-collection reference.

Reviewers describe the Expedition as a capable outdoor watch. WatchClicker found the 41 mm appealed to non-enthusiasts and that both sizes wear a millimeter larger than their measurements, and Gear Patrol noted the shorter lugs give a compact fit. Fratello, T3 and Time+Tide also reviewed the line.

Hamilton’s official page marks this reference as part of the past collection, so it is no longer in current production, although retailer stock may remain.