Seiko Cal. 6399 - 656

The Seiko 6399-656 represents an important milestone in Seiko's 1983 lineup. Powered by the 6399 caliber with 22j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-63bea9dbed1f]

Also known as: Crown, Golden Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Burgundy

Jewels

22j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1983

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