Seiko Cal. 4590 - 643

This Hand-Winding model from 1991 features a 45mm Stainless Steel case. With its 18mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-a337b21a4b85]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1991

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