Time Module Inc. NH72

The NH72 is a manual-winding movement manufactured by Time Module Inc., part of the NH7 series alongside the NH70A and NH71A variants. It measures 27.4mm in diameter and 5.32mm thick, operates at 21600 vph, and delivers a 41-hour power reserve with 24 jewels. The movement is wound by turning the crown a minimum of 55 times, or alternatively via screwdriver winding through the ratchet wheel screw using eight turns. It uses a ball-bearing rotor and features hand-winding capability.