Seiko Cal. 3848 - 637

This Spring Drive model from 1978 features a 43mm Gold-Plated case. It features a Silver dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-46b494a00457]

Also known as: Bullhead, Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1978

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