Seiko Cal. 6690 - 604

The Seiko 6690-604 represents an important milestone in Seiko's 1977 lineup. With its 19mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-2cc8e8a9e944]

Also known as: Rally, World Timer

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1977

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