Seiko Cal. 6660 - 865

The 6660-865 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6660 caliber with 26j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-e6d4adb28a79]

Also known as: Emperor, Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1981

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