Seiko Cal. 6648 - 781

The Seiko 6648-781 represents an important milestone in Seiko's 1976 lineup. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-67b2cd44e814]

Also known as: Sumo, Pogue

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1976

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