Straps are described generally as rubber. Detailed listings specify polyurethane (black rubber), standard black rubber, and yellow silicone rubber.
Buckle-style closures — the listings describe the closure as a 'buckle clasp.'
The listings show water resistance values of 100 meters and 200 meters.
Most are analog with date indicators. Some listings also include GMT, 12/24-hour time, a compass display, luminous hands, and various hour markers.
Detailed descriptions list strap widths of 24 mm and 32 mm.