Seiko Cal. 4487 - 538

Released in 1983, the Cal. 4487 with design code 538 was part of Seiko's domestic market collection. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-2dfad3ab7f1c]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1983

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