Timex Men's TW4B03500 Expedition Gallatin Black/Blue Nylon Slip-Thru Strap Watch

Product Review

Adjustable black 20mm resin strap fits up to 8-inch wrist circumference
24-hour stopwatch; customizable daily alarm; 2 time zones
24-hour military time mode; day & date calendar
Black 40mm resin case with acrylic lens; green digital display; Indiglo light-up watch dial
Water resistant to 100m (330ft): in general, suitable for swimming and snorkeling, but not diving
The case diameter is 40mm. The lug width (which is 19mm) is the distance between the lugs where the strap attaches to the case.