Seiko Cal. 5643 - 369

This Quartz model from 1974 features a 40mm Hardlex-Coated Steel case. Powered by the 5643 caliber with 26j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-36d3a468eef4]

Also known as: Tuna, Navigator

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1974

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