Seiko Cal. 6613 - 165

The Seiko 6613-165 represents an important milestone in Seiko's 1971 lineup. Powered by the 6613 caliber with 36j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-7b841b1f1a35]

Also known as: Sumo, Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1971

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