Seiko Cal. 6666 - 878

The Seiko 6666-878 represents an important milestone in Seiko's 1967 lineup. Powered by the 6666 caliber with 21j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-ff699bedac03]

Also known as: Samurai, Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1967

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