Smooth Transitions of Massachusetts

The watch shown is a vintage Seiko Sportsmatic Calendar 820, an automatic men's watch produced in the 1960s. This model is notable as a transitional watch that led to the development of the popular Seiko 5 series. Key Features and Details Movement: It features the automatic Caliber 7625A movement with 17 jewels and Seiko's "Magic Lever" winding system. It cannot be manually wound. Functionality: The watch has a date complication at the 3 o'clock position, which uses a semi-quickset function (moving the hands back and forth between 9 PM and 12 PM to change the date). Design: The watch typically has a case size of around 36-37mm and features a recessed crown at the 4 o'clock position to emphasize its automatic winding nature. The case in the image appears to be gold-plated, and it is paired with a two-tone (gold and silver) metal bracelet, which may be an aftermarket addition (many original models came with leather straps) Working. Crystal should be relaced. (Terry)

If you are unable to make the pickup Saturday, we are offering alternate pickup appointments on Sunday by appointment. Text Ann Newberry to arrange (contact info in invoice email).