Seiko Cal. 3891 - 355

This Spring Drive model from 1974 features a 41mm Two-Tone case. It features a Green dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-3cdfb5105ee4]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1974

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