Seiko Cal. 4542 - 807

The Seiko 4542-807 represents an important milestone in Seiko's 1966 lineup. Powered by the 4542 caliber with 20j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-d972d5b8edbc]

Also known as: Tuna, UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1966

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