Seiko Cal. 5644 - 414

This Quartz model from 1977 features a 45mm Stainless Steel case. It features a Black dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-a23637f9babd]

Also known as: Sumo, Flighty

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1977

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