This watch belongs to the Seiko 5 ACTUS series, a line introduced in the late 1960s as part of Seiko’s effort to modernize its mechanical watches during a period of rapid technological transition. ACTUS models featured more contemporary case designs, improved movements, and a refined aesthetic compared to earlier Seiko 5 models, reflecting the shift in design language from the late 1960s into the 1970s—an era defined by bold case shapes and innovative crown positioning. The Caliber 7019 used in this watch is a robust 21-jewel automatic movement, widely appreciated for its durability and practical everyday performance. It represents one of Seiko’s mature mechanical calibers developed just before quartz technology began to reshape the global watch industry. A notable design feature is the slanted crown at the 4 o’clock position, improving wearing comfort while giving the watch a distinctive asymmetrical character—one of the defining traits of Seiko watches from this period. Combined with its clean silver dial, applied indices, and bilingual day-date display, this model offers a timeless and highly wearable vintage aesthetic. Watches like this embody the final phase of Seiko’s large-scale mechanical production—just before the transition to quartz—making them an appealing choice for collectors who appreciate this pivotal era. This is a vintage Seiko 5 ACTUS automatic wristwatch, powered by the Seiko Caliber 7019 movement with 21 jewels. Specifications Brand: Seiko Model: Seiko 5 ACTUS Reference: 7019-8010 Movement: Automatic (Cal. 7019) Jewels: 21 jewels Case size: approx. 38.5 mm Lug width: approx. 18 mm Serial number: 7N2396 Estimated production date: November 1977 (based on serial number) Case material: Stainless steel Strap: New genuine leather strap Made in Japan Condition The watch is currently running. The watch starts running with light movement of the rotor and continues to operate. Day-date display is functional; however, the quickset operation differs from standard behavior. Quickset / Crown Operation Rotating the crown counterclockwise in its normal position advances the date Rotating in the opposite direction does not properly change the day The day can be adjusted by advancing the time past midnight repeatedly Manual winding may not be available depending on the mechanism condition This behavior is sometimes seen in Cal. 7019 models, but servicing may be required for proper operation. Crystal Acrylic crystal Cracks are present around approximately: 5–6 o’clock 9 o’clock Minor damage around 2 o’clock These are not highly noticeable at a glance but are visible upon closer inspection Please refer to the photos for details Case Stainless steel Scratches and signs of wear consistent with age Dial Generally clean with minor aging Strap New genuine leather strap Additional Notes As this is a vintage timepiece, the service history is unknown. The watch is currently running; however, accuracy, power reserve, and overall performance (including day-date function) are not guaranteed. Please understand that maintenance or servicing may be required. This watch offers both vintage character and everyday usability, making it an enjoyable piece for collectors and enthusiasts alike. Shipping The item will be carefully packed and shipped from Japan using a reliable shipping service with tracking. Shipping times may vary depending on the destination country and customs procedures. Delays caused by customs are beyond our control. Any import duties, taxes, or additional charges are the responsibility of the buyer.