Seiko Cal. 6377 - 742

This Hand-Winding model from 1967 features a 40mm Hardlex-Coated Steel case. Powered by the 6377 caliber with 34j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-4ad8a2e56eda]

Also known as: Sea Horse, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1967

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