Seiko Cal. 3878 - 857

This Hand-Winding model from 1976 features a 43mm Stainless Steel case. It features a Cream dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-5cc3f94eefc8]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1976

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