Seiko Cal. 5664 - 151

The Seiko 5664-151 represents an important milestone in Seiko's 1967 lineup. Powered by the 5664 caliber with 27j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-5f325327c4fe]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1967

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