Seiko Cal. 5690 - 997

This Quartz model from 1972 features a 40mm Titanium case. Powered by the 5690 caliber with 36j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-b41f68d8c18f]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

36j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1972

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