Seiko Cal. 4487 - 635

The 4487-635 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4487 caliber with 27j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-18c51536f416]

Also known as: Goldfeather

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1983

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