Seiko Cal. 6391 - 971

The 6391-971 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6391 caliber with 20j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-29897b2c07ed]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1967

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