Seiko Cal. 6666 - 380

The 6666-380 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6666 caliber with 31j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-b354e83a9ea0]

Also known as: Goldfeather, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1977

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