Seiko Cal. 4528 - 848

This Hand-Winding model from 1981 features a 45mm Hardlex-Coated Steel case. With its 22mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-de603c1f5613]

Also known as: Helmet, Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1981

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