Seiko Cal. 6636 - 209

This Spring Drive model from 1965 features a 40mm Two-Tone case. With its 20mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-fda0bca5d198]

Also known as: Navigator, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1965

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