Seiko Cal. 5258 - 663

The Seiko 5258-663 represents an important milestone in Seiko's 1968 lineup. Powered by the 5258 caliber with 25j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-919bdc91e716]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1968

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