Case: 40 x 45mm 20mm lug Ceramic bezel 316 stainless steel case Brushed finish Crown diameter: 6.5mm 1.2mm mineral crystal Highly legible Super-LumiNova display with long-lasting luminescence 3BAR / 3ATM / 30M daily waterproof water-resistance Movement: MIYOTA mechanical movement Unidirectional self-winding via Perpetural rotor Frequency: 21,600 vibrations per hour (3 Hz) Accuracy: +/-12 sec/day, after casing Power reserve: approx. 40 hours Functions: hour, minute, and second hands. Instantaneous date with rapid setting. Stop-seconds for precise time setting Bracelet: Tapered 22-20mm 316L stainless steel band with butterfly clasp Style: pea001-sgblk Color: Black Bezel / Black Dial Material: Stainless Steel / Ceramic