Seiko Cal. 7156 - 321

This Quartz model from 1970 features a 34mm PVD Black case. Powered by the 7156 caliber with 27j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-3a0bced746a7]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1970

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