Seiko Cal. 6690 - 774

The 6690-774 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6690 caliber with 28j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-bacd50a11b80]

Also known as: Navigator, Sea Horse

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1971

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