Automatic movement Tudor Calibre T601, based on ETA 2824 with 25 jewels and bitting at 28800 vph. Power reserve approximately 38 hours. Silver-tone stainless steel case, black leather strap, fixed silver-tone bezel, opaline dial, index hour markers, silver-tone hands and baton tips, minute markers on outer rim, analog display, date function at the 3 o'clock position. Sapphire crystal for scratch resistance. Screw down crown with pushers. Solid case back. Round shape, 36 mm diameter. Fold over clasp with safety release mechanism. Water resistant to 100 meters / 330 feet (depth rated). Functions include hour, minute, second and date display. Part of the Glamour Date Series. Item variations: Tudor Calibre T601 Automatic movement; Silver-tone stainless steel case; Black leather strap; Fixed silver-tone bezel; Opaline dial with applied index markers and baton hands; Minute track on outer rim; Analog functions (hours, minutes, seconds); 3 o'clock date aperture; Sapphire crystal lens; Screw down winding/crown protection system; Solid case back; Round 36 mm case shape; Fold over clasp with safety release. Water resistant at 100 meters / 330 feet. Luxury watch style, Swiss Made.