Seiko Cal. 6690 - 592

This Spring Drive model from 1990 features a 37mm Hardlex-Coated Steel case. Powered by the 6690 caliber with 28j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-e2e9627ba482]

Also known as: Arnie, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1990

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