Automatic mechanical movement with column wheel and bitting at 28,800 vph (4 per seconds). Annual calendar complication automatically adjusts for months including leap years. Date display at the 12 o'clock position. Day of week indicator at the 10 o'clock position. Month display shown at the 2 o'clock position. Luminous silver-tone hour and minute hands with index markers also luminous on the outer rim minute track. Small seconds sub-dial positioned prominently. Sapphire crystal scratch-resistant glass covering the green dial face. Deployment buckle bracelet equipped with push-button activation mechanism for clasp release. Screw-down winding/crown protects against water ingress, rated to 30 meters / 100 feet depth pressure resistance (not diving). Round case measuring 42 mm in diameter constructed from stainless steel material.
