Seiko Cal. 3861 - 136

This Hand-Winding model from 1974 features a 37mm Two-Tone case. Powered by the 3861 caliber with 34j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-72db7dad8c8b]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1974

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