[Size/Weight] Case size (H x W x D): 46 x 42.5 x 13.6 (approx. mm), belt: width approx. 18 mm (buckle side) ~ 22 mm (case side), ring width approx. 22 mm, arm circumference length (Longest length) 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, calendar (date) function, 24 koku) [Accessories] Instruction manual in Japanese and English (copies of both), cosmetic case (SEIKO cosmetic case is included, but the design differs each time it arrives) Originating from the Seiko Sportsmatic 5 (commonly known as Seiko Five) released by SEIKO in 1963, Seiko Five Sports was born as a derivative series in 1968 with sports-oriented functions and designs. This New Seiko Five Sports has updated functions and logo design. Equipped with a 4R movement, equipped with a manual winding function and a hack function that were not found in the 7S movement, it is a new style concept with a sporty design that matches various scenes. This GMT model, newly added in 2022, 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. .