Seiko Cal. 6630 - 881

This Hand-Winding model from 1976 features a 42mm Stainless Steel case. Powered by the 6630 caliber with 25j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-0cef91bd2ab6]

Also known as: Tuna, Pogue

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1976

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