Seiko Cal. 6690 - 373

The Seiko 6690-373 represents an important milestone in Seiko's 1991 lineup. With its 21mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-55508986b88c]

Also known as: UFO, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1991

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