Seiko Cal. 6653 - 680

The Seiko 6653-680 represents an important milestone in Seiko's 1971 lineup. Powered by the 6653 caliber with 31j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-64b41ec7bade]

Also known as: Samurai, Sumo

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1971

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