Seiko Cal. 5258 - 378

The Seiko 5258-378 represents an important milestone in Seiko's 1972 lineup. Powered by the 5258 caliber with 25j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-060c9da606b6]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1972

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