Seiko Cal. 7139 - 481

The Seiko 7139-481 represents an important milestone in Seiko's 1983 lineup. Powered by the 7139 caliber with 17j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-4801cdbeeee4]

Also known as: Turtle, Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1983

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