Seiko Cal. 5643 - 741

This Quartz model from 1980 features a 38mm Two-Tone case. It features a Silver dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-ee6481264643]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1980

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