Seiko Cal. 4426 - 304

This Hand-Winding model from 1973 features a 37mm Stainless Steel case. It features a White dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-4ffcaf06e976]

Also known as: Sumo, Navigator

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

32j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1973

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