Seiko Cal. 6631 - 839

Released in 1993, the Cal. 6631 with design code 839 was part of Seiko's domestic market collection. It features a Black dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-dbe42df59df2]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1993

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