Seiko Cal. 6690 - 313

This Quartz model from 1971 features a 41mm Titanium case. With its 21mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-1ddf3d5c363c]

Also known as: Samurai, Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

41mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1971

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