Seiko Cal. 4531 - 103

The 4531-103 is a sought-after Solar piece from Seiko's golden era. With its 20mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-cce12ebf518c]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1970

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