Seiko Cal. 5660 - 865

The 5660-865 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5660 caliber with 29j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-2f785d874920]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1990

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