Seiko Cal. 6690 - 128

This Solar model from 1968 features a 37mm Gold-Plated case. Powered by the 6690 caliber with 18j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-f1e513e8973e]

Also known as: Monster, Bellmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1968

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