Seiko Cal. 5643 - 991

The 5643-991 is a sought-after Quartz piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-94466be2923d]

Also known as: Shogun, Flighty

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1976

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