Seiko Cal. 6391 - 712

The Seiko 6391-712 represents an important milestone in Seiko's 1984 lineup. Powered by the 6391 caliber with 18j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-f2980a916365]

Also known as: Crown, Emperor

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1984

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