Title: Seiko 5 Actus 6106-8660 Automatic Day-Date 36mm 1970s Vintage Stainless Steel Description: This is a genuine Seiko 5 Actus automatic wristwatch, reference 6106-8660, manufactured in the 1970s. The caseback clearly shows: SEIKO WATER RESISTANT STAINLESS STEEL 6106-8660 Movement: 6106 Serial prefix: 4D0093 (Seiko dating system indicates production in the 1970s) This model is powered by Seiko’s reliable automatic Cal. 6106 movement, one of the iconic Japanese in-house calibers that helped establish Seiko’s global reputation during the golden era of mechanical watchmaking. The silver sunburst dial has developed a natural vintage patina, giving the watch strong character and authenticity. The applied baton indexes and classic day-date window at 3 o’clock create a clean, well-balanced design typical of the Seiko 5 Actus line. Condition & Function: • Running condition • Date changes by pushing the crown • Time adjusts by pulling the crown • Day changes by advancing the time 24 hours • Crown rotation is slightly stiff • Normal signs of use, scratches and aging consistent with age • Please carefully check all photos for condition details The original Seiko 5 Actus bracelet is attached. The clasp is engraved “SEIKO 5 ACTUS”. The bracelet shows normal wear consistent with age. Specifications: Brand: Seiko Model: Seiko 5 Actus Reference: 6106-8660 Movement: Automatic (Cal. 6106) Functions: Hours, Minutes, Seconds, Day, Date Case Material: Stainless Steel Case Diameter: 36 mm (excluding crown) Dial: Silver sunburst Crystal: Acrylic Bracelet: Stainless steel Wrist size shown in photo: approximately 18 cm About the Seiko 5 Actus: The Seiko 5 Actus line was introduced for the Japanese domestic market and represents an important period in Seiko’s technical evolution during the 1970s. The 6106 movement is respected among collectors for its durability and practical quick-set mechanism. This watch reflects the strong design language of that era — sharp case lines, integrated bracelet styling, and confident minimalist dial layout. This is not simply a vintage watch; it is a piece of Japan’s industrial and horological history from a time when Seiko was redefining global standards. Popular Search Keywords: Seiko Actus 6106 Automatic Vintage JDM Mechanical Daydate Retro Classic Japanese Collectible Steel 1970s Analog Shipping & Important Information: The watch will be carefully packed and shipped safely via DHL or Japan Post (delivery time approximately 1–2 weeks). Import duties, taxes, and fees are not included and are the buyer’s responsibility. Please carefully review all images before bidding. We strive to represent our products accurately; however, due to screen differences, colors may vary slightly. Thank you for your bid.