Seiko Cal. 3863 - 369

This Spring Drive model from 1970 features a 42mm Stainless Steel case. It features a Silver dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-43ccd8ba13a0]

Also known as: Turtle, Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1970

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