Seiko Cal. 4527 - 666

The 4527-666 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4527 caliber with 29j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-6b01c1224f6b]

Also known as: Goldfeather, Crown

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1974

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