Seiko Cal. 7139 - 508

This Automatic model from 1968 features a 40mm Titanium case. Powered by the 7139 caliber with 34j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-7f97de5a55bb]

Also known as: Turtle, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1968

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