Seiko Cal. 4427 - 432

This Hand-Winding model from 1981 features a 41mm PVD Black case. It features a Champagne dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-5f2cbd4cbe32]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

36j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1981

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