Seiko Cal. 6139 - 815

The Seiko 6139-815 represents an important milestone in Seiko's 1976 lineup. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-da614d4f13e1]

Also known as: Sumo, Crown

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1976

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