Seiko Cal. 5629 - 661

This Automatic model from 1966 features a 41mm PVD Black case. Powered by the 5629 caliber with 27j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-4ccaf0e66b03]

Also known as: Tuna, Silverwave

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1966

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