Seiko Cal. 3851 - 215

This Spring Drive model from 1979 features a 34mm Hardlex-Coated Steel case. It features a White dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-9df7917a50ca]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1979

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