Seiko Cal. 6643 - 350

Released in 1996, the Cal. 6643 with design code 350 was part of Seiko's domestic market collection. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-a8dd6add22f2]

Also known as: Helmet, Bellmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

35mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1996

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