Seiko Cal. 5661 - 433

This Solar model from 1972 features a 40mm Titanium case. With its 20mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-7f8c81a81b4c]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1972

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