Seiko Cal. 6660 - 507

The 6660-507 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6660 caliber with 36j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-ab7e4821a716]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1986

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