Seiko Cal. 0777 - 478

This Hand-Winding model from 1978 features a 37mm Stainless Steel case. Powered by the 0777 caliber with 21j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-799698284032]

Also known as: Navigator, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1978

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