Seiko Cal. 4566 - 721

The Seiko 4566-721 represents an important milestone in Seiko's 1975 lineup. Powered by the 4566 caliber with 19j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-2faa7ee15325]

Also known as: Golden Tuna

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1975

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