Additional Details ------------------------------ Product description: The new Seiko 5 Sports model is based on the "SKX Model" sports watch loved from around the world. The new 4R34 mechanical caliber is equipped with Equipped with GMT function, the hour and 24 hour hand (GMT hand) indicates the different time, It can display the time of two time zones with different time intervals. Two color rotating bezel display plate for instant day and night reading, select glossy hardlex glass. Metallic tones are beautifully polished by vapor deposition treatment, which will vary depending on the angle of light irradiation. Movement Caliber No: 4R34 Drive Type: Mechanical automatic movement (with hand winding) Accuracy: + 45 seconds to -35 seconds per day. Operation time: Approximately 41 hours on maximum winding Number of Stones: 24 Features: 24 hour hand Second hand stop function. Case Band Case Material: Stainless steel; Back: Stainless steel and glass. Case Size (H x W x D): 1.8 x 1.7 x 0.5 inches (46.0 x 42.5 x 13.6 mm). Glass Material: Hardlex with Lens Lumibrite: Yes (needle and index). Clasp: One push triple folding method Arm Circumference (Max.): 8.1 inches (205.0 mm) Watch Specifications Waterproof: Reinforced water resistance for everyday use (10 ATM). Anti-magnetic: Yes. Weight: 5.6 oz (161.0 g). Other features: see through back, screw back, rotating bezel, double lock clasp see-through screw back