Seiko Cal. 6656 - 391

The Seiko 6656-391 represents an important milestone in Seiko's 1967 lineup. Powered by the 6656 caliber with 19j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-1221a76e88d2]

Also known as: Goldfeather, Golden Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1967

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