Seiko Cal. 3891 - 960

This Spring Drive model from 1979 features a 39mm PVD Black case. It features a Silver dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-5d1de37b0c29]

Also known as: Sea Horse, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1979

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