Seiko Cal. 7142 - 403

The 7142-403 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7142 caliber with 24j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-21ff16c858b3]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1975

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