Seiko Cal. 4533 - 657

The Seiko 4533-657 represents an important milestone in Seiko's 1966 lineup. Powered by the 4533 caliber with 33j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-cfc48bb023c9]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1966

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