[Size/Weight] Case size (length x width x thickness): 46 x 42.5 x 13.6 (approx. mm), belt: width approx. 18 mm (buckle side) ~ 22 mm (case side), lug width approx. 22 mm, arm circumference length Length (longest) 205mm, weight: approx. 161g [Material] Case: Stainless steel, Belt: Stainless steel, Windshield: Hardlex crystal with lens, Bezel: Stainless steel (Display part: Hardlex crystal) [Waterproof performance] Reinforced waterproofing for daily life (10 ATM) *The crown is not screw-in. [Caliber No.] 4R34 Automatic winding (with manual winding, 24 o'clock (GMT) hand, second hand stop function) [Accessories] Japanese manual (copy), cosmetic case (SEIKO cosmetic case is included, but the design will differ each time it arrives) This model is an even more beautiful evolution of the new Seiko 5 Sports, which was developed based on the SKX model, a sports watch loved all over the world. The newly developed mechanical caliber 4R34 is equipped with a GMT function, and the hour hand and 24-hour hand (GMT hand) each indicate different times, allowing it to display the time in two time zones with a time difference. is possible. Glossy Hardlex glass was selected for the two-color rotating bezel display that allows you to instantly tell when it's day or night. The metallic color shines beautifully due to the vapor deposition process, and varies depending on the angle of light irradiation. Movement Caliber No.: 4R34 Drive system: Mechanical automatic winding (with manual winding) Accuracy: +45 seconds to -35 seconds per day Driving period: Approximately 41 hours at maximum winding Count of jewels: 24 jewels Function: 24-hour hand, second hand stop function Case/Band Case material: Stainless steel Back cover: Stainless steel and glass Case size: Length: 46.0 x Width: 42.5 x Thickness: 13.6 mm Glass material: Hardlex with lens Lumibrite: Available (hands/index) Clasp: One-push three-fold method Arm circumference (longest): 205.0 mm Watch specifications Water resistance: Reinforced waterproof for daily life (10 atm) Magnetic resistance: Yes Weight: 161.0g Other features: See-through back, screw back, rotating bezel, double lock clasp, see-through screw back lid