Seiko Cal. 7170 - 139

The Seiko 7170-139 represents an important milestone in Seiko's 1976 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-dbc5955d6f90]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1976

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