Caliber Number: 6R54 Movement Type: Automatic with manual winding Precision: +25 to -15 seconds per day Power reserve: Approx. 72 hours(3 days) Jewels: 24 24-hour hand (dual time display function) Stop seconds hand function Case Material: Stainless steel (super hard coating) Case Size Thickness:13.6mm Diameter:39.5mm Lug-to-lug:46.4mm Crystal: Curved sapphire crystal Crystal Coating: Anti-reflective coating on inner surface LumiBrite: Lumibrite on hands and index(es) Distance between lugs: 20 Water Resistance: 20 bar Weight: 156.0 LIMITED EDITION on the case back Screw-down crown See-through & Screw case back CONDITIONS: Will be shipped by courier. DHL. All our products are 100% authentic. Comes with original papers and package. Business days from Sunday to Thursday. All import duties and customs clearance charges are the responsibility of the buyer if there is any. Please note that we charge a 20% restocking fees for any shipment not claimed and accepted from customs clearance and has to be returned to shipper.