Seiko Cal. 5613 - 958

The Seiko 5613-958 represents an important milestone in Seiko's 1965 lineup. Powered by the 5613 caliber with 27j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-5e21ceb33d11]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1965

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