[Introduction] Seiko Automatic Ref. 4R36-05Z0 is a practical and well-balanced mechanical model powered by Seiko’s reliable Cal. 4R36 movement. The clean silver-tone dial features applied baton hour markers, a day-date display at 3 o’clock, and a clear minute track for enhanced legibility. The stainless steel case and bracelet provide durability for daily wear, while the transparent case back reveals the 24-jewel automatic movement. This example is offered with its original box, instruction manual, and additional bracelet links. [Historical & Collector Value] The 4R36 movement has been widely used in Seiko’s mechanical lineup since the 2010s, offering hacking seconds and manual winding capability in addition to automatic winding. Known for durability and ease of maintenance, the 4R36 has become a core caliber in Seiko’s modern mechanical watches. Models such as Ref. 4R36-05Z0 are appreciated for their balanced design, everyday practicality, and strong value within the contemporary automatic segment. Specifications ◇ Brand: Seiko ◇ Reference: 4R36-05Z0 ◇ Movement: Automatic (Cal. 4R36, 24 jewels, hacking & hand-winding) ◇ Functions: Hours, minutes, seconds, day-date display ◇ Dial Color: Silver ◇ Case Material: Stainless steel ◇ Case Back: Transparent exhibition case back ◇ Bracelet: Stainless steel bracelet (Seiko signed clasp) ◇ Case Diameter: 40 mm ◇ Wrist Size: Approx. 17–21 cm (with additional links) ◇ Water Resistance: 10 BAR ◇ Country of Manufacture: Japan ◇ Accessories: Original box, instruction manual, warranty booklet, extra links ・Condition The dial, hands, and crystal appear well preserved. Accessories are included as shown in the photos. ・Service History Operational checks have been performed and the watch is functioning at the time of listing. As an automatic mechanical watch, it does not require a battery. Future maintenance may be required depending on usage and buyer standards. ・Shipping & Customs The watch will be shipped from Japan and carefully packed to ensure safe delivery. International shipping is available. Please note that any customs duties, VAT, or import taxes are the responsibility of the buyer.