Seiko Cal. 4542 - 807

Seiko 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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