Seiko Cal. 3815 - 151

This Solar model from 1968 features a 43mm Titanium case. It features a Black dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-52da6098066f]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1968

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