Seiko Cal. 3856 - 137

This Spring Drive model from 1987 features a 39mm Hardlex-Coated Steel case. Powered by the 3856 caliber with 21j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-c3a77354f221]

Also known as: Goldfeather, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1987

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