Seiko Cal. 5638 - 986

This Solar model from 1965 features a 36mm Titanium case. With its 20mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-41bf1b6a6b6c]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1965

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