Orient x Automatic ft. Bambino aka Open Heart aka Helios Men Formal Round 30m Water Resistant Watch RA-AG0029NDiscover timeless elegance with the Orient 40.5mm automatic watch. It boasts a rounded boxed glass, curved silver bombe dial, sleek stainless steel case, see-through back, semi-skeleton design, versatile band, stylish hands, and a hand-wound crown with automatic self-winding. With 30 meters of water resistance, it is perfect for any occasion.Caliber Number / MovementF6T22 (automatic with manual winding capacity)Power Reserve / AccuracyApproximately 40 hours (+25 to -15 seconds per day)CrystalMineral crystal (curved)LuminousNilCase / Band MaterialStainless steel case with stainless steel band (deployment clasp with push-button release)Water Resistance30m / 3 barCase SizeThickness: 12.0 mmDiameter: 40.5 mmLength: 46.5 mmLug width: 21.0 mmOther SpecificationsOrient x Automatic ft. Bambino aka Open Heart aka HeliosSee-through case back22 jewelsStop second hand function (hacking mechanism)Regular timekeeping (analog display)