Seiko Cal. 5242 - 556

The Seiko 5242-556 represents an important milestone in Seiko's 1981 lineup. Powered by the 5242 caliber with 29j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-03fd57b42cd8]

Also known as: Tuna, World Timer

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

29j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1981

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