Seiko Cal. 6399 - 766

The Seiko 6399-766 represents an important milestone in Seiko's 1988 lineup. Powered by the 6399 caliber with 34j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-43d076b9020d]

Also known as: Tuna, Crown

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1988

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