Nixon The 51-30 Tide watch. Custom 3 hand Swiss quartz movement with easy to read tide sub dial. Fast adjust button for easy setting of tide. 51.25mm wide, custom stainless steel case with hardened mineral crystal, external rotating bezel with countdown timer, and screw crown at 9 O'clock position. Custom solid 25 mm wide stainless steel band with double locking clasp. 300m water resistant. Imported.