Seiko Cal. 5227 - 487

The 5227-487 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5227 caliber with 29j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-80c4032a56c5]

Also known as: Monster, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1979

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