Seiko Cal. 6386 - 311

This Spring Drive model from 1971 features a 40mm PVD Black case. Powered by the 6386 caliber with 31j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-02c2e0b514b8]

Also known as: UFO, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1971

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