Seiko Cal. 3861 - 731

The 3861-731 is a sought-after Automatic piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-146ab5747e6f]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1974

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