Seiko Cal. 6648 - 843

The Seiko 6648-843 represents an important milestone in Seiko's 1971 lineup. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-f1acab7fa087]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1971

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