Seiko Cal. 6690 - 507

This Spring Drive model from 1968 features a 36mm Titanium case. With its 22mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-6a1e10c641c2]

Also known as: Goldfeather, World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

33j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1968

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