Seiko Cal. 3871 - 668

This Hand-Winding model from 1967 features a 35mm Gold-Plated case. Powered by the 3871 caliber with 31j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-71104efaed36]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1967

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