Seiko Cal. 4487 - 260

The 4487-260 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4487 caliber with 24j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-3071ebfe63b8]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1972

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