Seiko Cal. 6242 - 400

The Seiko 6242-400 represents an important milestone in Seiko's 1978 lineup. Powered by the 6242 caliber with 32j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-ed712da7bdd3]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

32j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1978

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