Seiko Cal. 5646 - 520

The Seiko 5646-520 represents an important milestone in Seiko's 1999 lineup. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-99b832e3550b]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1999

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