[WTS] 1964 Seikomatic Week 6206-8990 Diashock 26 Jewels

1964 Seikomatic Week 6206-8990 Diashock 26 Jewels

This is a pre-Grand Seiko debut model from August 1964, featuring the Diashock 26 jewels movement and a unique day display above the six o'clock mark.

  • Condition: Pre-owned
  • Movement: 6206-8990, 18000bph Automatic
  • Production Year: August 1964
  • Dial Type: Original beautiful dial
Posted at
Jun 14, 2025, 9:34 PM
Active
[WTS] 1964 Seikomatic Week 6206-8990

1964 Seikomatic Week 6206-8990

Seikomatic - 6206-8990 · $399
Up for sale is my Seikomatic Weekdater, dating from August 1964. This is pre-Grand Seiko debut model, it shares some of the design features of the Grand Seiko 62.

  • Movement: 6206-8990, 18000bph Automatic
  • Production Year: August 1964
  • Dial: Original beautiful dial
Posted at
Jun 7, 2025, 8:02 PM
Active
[WTS] 1965 Seikomatic Weekdater 6206-8990, Dolphin case back, pre Grand Seiko era

1965 Seikomatic Weekdater 6206-8990, Dolphin case back, pre Grand Seiko era

Seiko - 6206-8990 · $399
A pre-Grand Seiko era Weekdater model from 1965, featuring a unique day display and Diashock movement.

  • Movement: 6206-8990, 18000bph Automatic
  • Production year: April 1965
  • Dial condition: Original beautiful dial no blemish
Posted at
Mar 1, 2025, 7:53 PM
Sold