Seiko Cal. 6698 - 537

This Automatic model from 1975 features a 34mm PVD Black case. Powered by the 6698 caliber with 20j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-35ba11d3b494]

Also known as: Bullhead, Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1975

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