Seiko Cal. 5639 - 245

This Solar model from 1972 features a 44mm Titanium case. With its 22mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-7571f0b80309]

Also known as: Sumo, Flighty

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1972

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