Seiko Cal. 4426 - 643

The 4426-643 is a sought-after Solar piece from Seiko's golden era. With its 18mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-7884cd92ae50]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1980

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