Seiko Cal. 4443 - 394

This Hand-Winding model from 1977 features a 37mm PVD Black case. With its 21mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-de49dc2a8606]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1977

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