SEIKO PROSPEX SPEEDTIMER AUTOMATIC HBC004 HBC004J1

✔ 3 Years International Warranty ✔ 100% Brand New and Authentic ✔ Singapore Islandwide Delivery Movement Caliber Number - 6R55 Movement Type - Automatic with manual winding Accuracy - +25 to -15 seconds per day Duration - Approx. 72 hours(3 days) Exterior Case Material - Stainless steel (super hard coating) Crystal - Curved sapphire crystal Crystal Coating - Anti-reflective coating on inner surface LumiBrite - LumiBrite on hands, index(es) Clasp - Three-fold clasp with push button release Other Details Water Resistance - 20 bar Case Size - Thickness: 12.0㎜ - Diameter: 39.5㎜ - Length: 44.5㎜ Features -Inner rotating ring with countdown scale -Screw case back