• Model: Weekdater
• Language: Kanji Japanese version
• Location restrictions: UK only

Up for sale is my Seikomatic Weekdater 6206-8040 dating from 1966. This is pre-Grand Seiko debut model, it shares some of the design features of the Grand Seiko 62.

• Condition: Pre-owned, serviced in January 2024 with +/-15s per day accuracy
• Movement: 6206-8040, 18000bph Automatic movement
• Production Year: October 1966
• Case Dimensions: 36 x 42mm (diameter), 10mm (thickness), 19mm (lug width)

Up for sale is my Seikomatic Weekdater 6206-8040 dating from 1966. This pre-Grand Seiko debut model features Diashock and a unique day display above the six o'clock position.

• Movement: 6206-8040
• Production Year: October 1966
• Dial: original beautiful dial

This is a pre-Grand Seiko debut model, it shares some of the design features of the Grand Seiko 62 and has a unique way of showing the day. The crown is located at the four o'clock position and is recessed to the point of unnoticeable.

• Condition: Pre-owned, serviced January 2024 with +/-15s per day accuracy
• Movement: 6206-8040, 18000bph Automatic movement
• Production year: October 1966
• Crystal shape: Acrylic box shape crystal free from scratches

A pre-GS era Seikomatic Weekdater from 1966, featuring a unique day display and Diashock 26 jewels movement.

• Condition: Excellent (serviced in Jan 2024)
• Case dimensions: 36 x 42mm
• Thickness: 10mm
• Lug width: 19mm

This vintage Seiko Weekdater 6206-8040, produced in 1965, is a precursor to the original Grand Seiko 62 with similar design elements. It features a unique day display and a Diashock 26 jewel movement.

• Condition: Excellent
• Case Size: 36mm
• Lug Width: 19mm
• Lug To Lug Length: 42mm