Seiko Cal. 4545 - 637

The Seiko 4545-637 represents an important milestone in Seiko's 1999 lineup. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-e237d48ee521]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1999

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