Seiko Cal. 7139 - 442

The Seiko 7139-442 represents an important milestone in Seiko's 1999 lineup. Powered by the 7139 caliber with 18j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-f736852b169a]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1999

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