Seiko Cal. 6391 - 972

The 6391-972 is a sought-after Solar piece from Seiko's golden era. Powered by the 6391 caliber with 19j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-20d326dd9515]

Also known as: UFO

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1987

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