Seiko Cal. 4487 - 421

The 4487-421 is a sought-after Spring Drive piece from Seiko's golden era. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-a2d2a08356ad]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1985

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