Seiko Cal. 3831 - 685

This Automatic model from 1969 features a 38mm Two-Tone case. Powered by the 3831 caliber with 36j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-ba0a70a4ed93]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Champagne

Jewels

36j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1969

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