Seiko Cal. 6691 - 793

This Hand-Winding model from 1978 features a 42mm Stainless Steel case. Powered by the 6691 caliber with 20j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-e112bdbf0a67]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1978

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