[Introduction] This is a vintage Seiko 5 Actus SS, a classic Japanese automatic watch from Seiko’s golden era of mechanical watchmaking. Featuring a clean silver dial, day-date display in Japanese, and a solid stainless steel case with original bracelet, this model represents Seiko’s pursuit of reliability and functional beauty in the late 1960s–1970s. [Historical & Collector Value] The Seiko 5 Actus line was positioned as a higher-grade evolution of the Seiko 5 series, equipped with more refined movements and improved durability. The caliber 6106, with 23 jewels, is especially appreciated by collectors for its robustness and smooth operation. Models with the original case shape, dial, and bracelet—like this example—are becoming increasingly difficult to find, making this a desirable piece for vintage Seiko enthusiasts. The Japanese day wheel further enhances its authenticity and collector appeal. Specifications ◇Brand: Seiko ◇Model: Seiko 5 Actus SS ◇Reference Number: 6106-8440 ◇Movement: Automatic (Cal. 6106, 23 Jewels) ◇Case Material: Stainless Steel ◇Bracelet Material: Stainless Steel (original) ◇Case Size: Approx. 38 mm (excluding crown) ◇Functions: Time, Day-Date (Japanese) ◇Serial Number: 9N2556 ◇Made in: Japan ・Condition This watch shows visible signs of age and use, including scratches on the case, bracelet, and crystal, consistent with a vintage timepiece. The dial and hands remain original, preserving the authentic character of the watch. Please review all images carefully for detailed condition assessment. ・Service History Basic maintenance and operational checks have been performed, and the watch is currently functioning. However, please note that a battery replacement or full overhaul may be required in the future depending on usage and personal accuracy standards. This is common and expected for vintage mechanical watches and is reflected transparently for buyer reassurance. ・Shipping & Customs Secure international shipping with tracking Carefully packed for protection Import duties, VAT, and customs fees are the responsibility of the buyer