Seiko Cal. 4490 - 631

The Seiko 4490-631 represents an important milestone in Seiko's 1987 lineup. It features a Champagne dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-f5ae5d56aca3]

Also known as: World Timer

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

43mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1987

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