Seiko Cal. 4426 - 946

Released in 1965, the Cal. 4426 with design code 946 was part of Seiko's domestic market collection. It features a Silver dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-acf0489cc4f0]

Also known as: Tuna, Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1965

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