Seiko Cal. 6391 - 457

The Seiko 6391-457 represents an important milestone in Seiko's 1992 lineup. Powered by the 6391 caliber with 36j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-54c441f82bbb]

Also known as: UFO

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Champagne

Jewels

36j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1992

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