Seiko Cal. 6641 - 712

This Spring Drive model from 1970 features a 37mm Stainless Steel case. With its 19mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-31c903870e80]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Champagne

Jewels

17j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1970

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