Seiko Cal. 6166 - 564

The Seiko 6166-564 represents an important milestone in Seiko's 1976 lineup. Powered by the 6166 caliber with 22j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-a314bbaa8dde]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1976

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