Seiko Cal. 4552 - 539

The Seiko 4552-539 represents an important milestone in Seiko's 1976 lineup. With its 18mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-6fb60cccbf9b]

Also known as: Tuna, UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1976

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