Seiko Cal. 6643 - 426

The 6643-426 is a sought-after Automatic piece from Seiko's golden era. With its 22mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-8480edfbd3ca]

Also known as: Bullhead, Rally

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1976

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