Seiko Cal. 6691 - 510

This Kinetic model from 1968 features a 35mm Two-Tone case. With its 20mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-9af0e0f9bb4f]

Also known as: Navigator

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1968

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