Seiko Cal. 4577 - 266

The 4577-266 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4577 caliber with 20j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-002cb818fbd6]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1974

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