Seiko Cal. 6690 - 409

The Seiko 6690-409 represents an important milestone in Seiko's 1969 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-f488d992c078]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

33j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1969

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