Seiko Cal. 5631 - 634

The Seiko 5631-634 represents an important milestone in Seiko's 1993 lineup. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-6474ae45f211]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1993

Related Models

• Seiko 6681-782
• Seiko 6357-385
• Seiko 5290-667
• Seiko 6685-130
• Seiko 7089-972
• Seiko 5630-583
• Seiko 5270-300
• Seiko 3850-130
• Seiko 4523-203
• Seiko 6180-345
• Seiko 3860-322
• Seiko 7192-599