Silver-tone stainless steel case; black alligator leather strap; fixed silver-tone bezel; silver dial with stick hour markers and hands; minute outer ring markers; analog display; perpetual calendar function; month, date, day/moonphase indicators on sub-dials; power reserve indicator visible; hand wind movement Calibre JLC 876-440B containing 37 jewels composed of 262 parts beating at 28800 vph; approximately 192 hours power reserve duration; scratch resistant sapphire crystal; skeleton case back; round shape, 40mm diameter, 12.1mm thickness; deployment clasp with push button release mechanism; water resistance up to 50 meters (approx. 165 feet); displays year information via perpetual calendar; analog functions for hours, minutes, seconds.