Seiko Cal. 5633 - 770

This Solar model from 1977 features a 45mm Gold-Plated case. With its 19mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-c4c00bfb4e1a]

Also known as: Sumo, UFO

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1977

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