Seiko Cal. 6656 - 399

The 6656-399 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6656 caliber with 34j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-b263ea3f81bd]

Also known as: Golden Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1972

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