Seiko Cal. 6151 - 420

This Automatic model from 1971 features a 39mm PVD Black case. Powered by the 6151 caliber with 18j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-56d33dfa19ef]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1971

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