Seiko Cal. 4424 - 551

This Hand-Winding model from 1973 features a 35mm Hardlex-Coated Steel case. It features a White dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-06e104d8b8cd]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1973

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