Seiko Cal. 5642 - 458

This Spring Drive model from 1968 features a 36mm Two-Tone case. Powered by the 5642 caliber with 33j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-3ea71a01a3df]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1968

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