Seiko Cal. 4542 - 247

The Seiko 4542-247 represents an important milestone in Seiko's 1981 lineup. Powered by the 4542 caliber with 28j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-ea6a8721e561]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

28j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1981

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