Seiko Cal. 4539 - 781

This Hand-Winding model from 1988 features a 45mm Hardlex-Coated Steel case. With its 19mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-54a75ca60eab]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1988

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