Seiko Cal. 3894 - 427

This Solar model from 1977 features a 36mm PVD Black case. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-bff938cd9955]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1977

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