Orient Star x Automatic ft. M34 F7 Semi Skeleton Men Formal Round 100m Water Resistant Watch RE-BY0010L Discover the Orient Star M34 F7 Semi-Skeleton, a Contemporary collection timepiece powered by the in-house automatic Caliber F7F44 with a 50-hour power reserve. Housed in a 40mm stainless steel SUS316L case with a dual-curved sapphire crystal featuring super anti-reflective coating. The see-through case back reveals the 24-jewel movement, while the stainless steel bracelet ensures comfort. Water-resistant to 100 meters. Caliber Number / Movement F7F44 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 50 hours (+15 to -5 seconds per day) Crystal Sapphire crystal (dual-curved, super anti-reflective coating) Luminous Luminous on hands and indexes Case / Band Material Stainless steel case with stainless steel band (three-fold clasp with push-button release) Water Resistance 100m / 10 bar Case Size Thickness: 13.0 mm Diameter: 40.0 mm Length: 47.3 mm Lug width: 20.0 mm Other Specifications Orient Star x Automatic ft. M34 F7 Semi Skeleton Made in Japan Magnetic resistance (4,800 A/m) See-through case back Screw case back 24 jewels Power reserve indicator Equipped with small second hand Stop second hand function (hacking mechanism) Regular timekeeping (analog display)