Seiko Cal. 6631 - 280

The Seiko 6631-280 represents an important milestone in Seiko's 1986 lineup. It features a Champagne dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-5604fb6977d3]

Also known as: Sea Horse, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

22j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1986

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