Seiko Cal. 6690 - 290

This Hand-Winding model from 1972 features a 35mm Hardlex-Coated Steel case. Powered by the 6690 caliber with 19j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-f5500949a035]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1972

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