Seiko Cal. 4571 - 639

This Hand-Winding model from 1990 features a 42mm PVD Black case. With its 20mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-6ccc8fb8ba0a]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1990

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