Seiko Cal. 6631 - 684

The Seiko 6631-684 represents an important milestone in Seiko's 1999 lineup. With its 18mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-893b48674fcd]

Also known as: Emperor

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1999

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