Seiko Cal. 6660 - 855

The 6660-855 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6660 caliber with 25j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-07925ed04528]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1979

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