Seiko Weekdater 6206-8010 26J Automatic Watch

The Seiko 6206-8010 is a vintage automatic watch from 1965, typically known as the Seiko Seikomatic Weekdater.

Key Specifications

Movement: Caliber 6206A automatic mechanical movement with 26 jewels, featuring hand-winding and hacking capabilities.

Functions: Analog time display with both a date window and a full day-of-the-week display.

Case Size: Approximately 35mm to 36mm in stainless steel, featuring sharp angles and short lugs.


The watch is keeping good time and everything works as it should.

This is a pre-owned vintage item. The crystal looks perfect with no visable scratches. The case and back show honest signs of wear but no major dings. The watch is currently running and keeping good time, everything works as it should. As with all vintage mechanical timepieces, a professional service is recommended for optimal accuracy and longevity.