Seiko Cal. 6690 - 704

The Seiko 6690-704 represents an important milestone in Seiko's 1970 lineup. Powered by the 6690 caliber with 24j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-9b27ea444e62]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1970

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