Seiko Cal. 4420 - 598

This Hand-Winding model from 1991 features a 41mm Hardlex-Coated Steel case. Powered by the 4420 caliber with 30j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-48f3063c06c4]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1991

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