Seiko Cal. 6391 - 115

The Seiko 6391-115 represents an important milestone in Seiko's 1985 lineup. Powered by the 6391 caliber with 17j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-faf398469adc]

Also known as: Tuna, Crown

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1985

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