Seiko Cal. 3867 - 717

The Seiko 3867-717 represents an important milestone in Seiko's 1966 lineup. Powered by the 3867 caliber with 18j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-553f0b97eff0]

Also known as: Sumo, UFO

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1966

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