Seiko Cal. 4542 - 612

The Seiko 4542-612 represents an important milestone in Seiko's 1969 lineup. Powered by the 4542 caliber with 23j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-b059c3eee216]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1969

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