Seiko Cal. 6636 - 966

This Solar model from 1973 features a 44mm Titanium case. With its 18mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-eb482dedd379]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1973

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