Seiko Cal. 5643 - 719

This Quartz model from 1976 features a 36mm Titanium case. It features a Black dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-6738aef56f70]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1976

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