Automatic mechanical movement, 28800 vph frequency (5Hz), approx. 43-hour power reserve; Caliber JLC925 movement with 30 jewels and 246 parts; Analog dial displaying hours, minutes, seconds via silver-tone dauphine-style hands and index markers; Minute track around the outer rim; Date display at the six o'clock position along with a moonphase sub-dial showing date and lunar phase simultaneously; Black dial accented by solid stainless steel bezel fixed to the case; Stainless steel round case measuring 39mm in diameter and 9.9mm thick; Scratch resistant sapphire crystal lens protecting the dial; Transparent case back allowing view of the movement; Double fold over clasp closure mechanism for the strap; Water resistance up to 50 meters / 165 feet depth, suitable for shallow swimming but not diving; Alligator leather strap secured by a stainless steel buckle and tangs.