Seiko Cal. 3894 - 637

This Hand-Winding model from 1977 features a 46mm Stainless Steel case. Powered by the 3894 caliber with 18j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-409e664b3b46]

Also known as: Samurai

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1977

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