Seiko Cal. 4531 - 617

The Seiko 4531-617 represents an important milestone in Seiko's 1980 lineup. With its 18mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-1da46160525d]

Also known as: UFO, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1980

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