Seiko Cal. 3861 - 603

This Spring Drive model from 1981 features a 39mm Gold-Plated case. It features a Black dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-b428000aa26c]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1981

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