Seiko Cal. 6643 - 520

Released in 1991, the Cal. 6643 with design code 520 was part of Seiko's domestic market collection. It features a Black dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-53e0abf7fdcc]

Also known as: Pogue, Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1991

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