Orient x Automatic ft. Bambino aka Open Heart aka Helios Men Formal Round 30m Water Resistant Watch RA-AG0027Y Discover 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 / Movement F6T22 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 40 hours (+25 to -15 seconds per day) Crystal Mineral crystal (curved) Luminous Nil Case / Band Material Stainless steel case with stainless steel band (deployment clasp with push-button release) Water Resistance 30m / 3 bar Case Size Thickness: 12.0 mm Diameter: 40.5 mm Length: 46.5 mm Lug width: 21.0 mm Other Specifications Orient x Automatic ft. Bambino aka Open Heart aka Helios See-through case back 22 jewels Stop second hand function (hacking mechanism) Regular timekeeping (analog display)