Seiko Cal. 4471 - 637

The 4471-637 is a sought-after Solar piece from Seiko's golden era. Powered by the 4471 caliber with 25j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-6dd0e5838b20]

Also known as: Goldfeather

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1972

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