Seiko Cal. 6690 - 231

The 6690-231 is a sought-after Automatic piece from Seiko's golden era. With its 19mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-8c3df35ff389]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1987

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