This is a discontinued item. [With Hack Function] Seiko 5 Sports SEIKO 5 Automatic 4R36-07G0 Open Back This is Seiko’s automatic (mechanical) wristwatch, the “Seiko 5 Sports (4R36-07G0).” It is a staple model of the newly rebranded “SEIKO 5 Sports” line, launched in 2019. While inheriting the design DNA of the legendary “SKX” diver’s watch, it has been updated with a modern and stylish design. It features the highly practical 4R36 movement, which includes convenient functions not found in previous Seiko 5 models, such as a “hand-winding function” and a “hack function” (second hand stop). Other appealing features include a large, easy-to-operate crown at the 4 o’clock position and a see-through case back that allows you to enjoy the mechanical movement. This is a versatile timepiece that can be worn with confidence in a variety of settings, from casual and sports to business. [Product Details] ・Brand: SEIKO ・Series: SEIKO 5 Sports ・Model Number (Case Engraving): 4R36-07G0 ・Movement: Automatic (Cal. 4R36 / 24 jewels) ・Functions: Hack function (second hand stop), Day-Date display (day of the week and date), unidirectional rotating bezel, see-through case back, 10 atm water resistance ・Dial & Bezel Color: Black ・Case Size: Width approx. 42.5 mm (excluding crown) ・Strap Wrist Circumference: Approx. 16.5 cm [Condition of the Item] ・Operation: Runs smoothly and reliably. Hand-winding, calendar quick-set, and hacking function are all working normally. ・Crystal: No noticeable scratches ・Case & Bezel: Shows slight scuffs from use, but is in good condition with no major dents or marks ・Strap: Genuine stainless steel strap [Included Accessories] Box, instruction manual *The items shown in the photos are all that are included. [Important Note] Please avoid fast-forwarding the calendar (day of the week and date) between 8:00 PM and 4:00 AM, as this may cause the watch to malfunction. 100% authentic. Please carefully review the photos for condition details. 【Shipping】 Japan Post: €20 (with tracking number) / Delivery period (approx. 2-4 weeks + processing time) *Due to the deteriorating situation in the Middle East, we are unable to ship to Portugal, the Middle East, or Africa. Please be aware of this before bidding. 【To International Customers】 Please note: Import duties, taxes, and fees are not included in the item price or shipping cost. These charges are the buyer's responsibility. Before bidding or purchasing, please check with your country's customs office regarding any additional costs.