Seiko Cal. 5645 - 341

This Spring Drive model from 1979 features a 41mm Two-Tone case. It features a Silver dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-8efd0f0ef523]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1979

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