Seiko Cal. 5640 - 650

This Quartz model from 1997 features a 36mm Two-Tone case. It features a Burgundy dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-462d80a000bf]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

36mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1997

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