Seiko Cal. 4426 - 605

This Hand-Winding model from 1976 features a 42mm Two-Tone case. It features a Green dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-56fa0306f254]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1976

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