Seiko Cal. 6643 - 698

Released in 1965, the Cal. 6643 with design code 698 was part of Seiko's domestic market collection. It features a Cream dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-fcf05ba9ef8c]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

26j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1965

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