Seiko Cal. 6643 - 901

The 6643-901 is a sought-after Solar piece from Seiko's golden era. With its 22mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-6bdeaf59ff5f]

Also known as: Navigator

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1973

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