Seiko Cal. 5631 - 519

The Seiko 5631-519 represents an important milestone in Seiko's 1991 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-12b563925d3e]

Also known as: Helmet, Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1991

Related Models

• Seiko 3820-864
• Seiko 5279-715
• Seiko 6215-316
• Seiko 4458-302
• Seiko 4541-887
• Seiko 3866-717
• Seiko 7120-660
• Seiko 4592-972
• Seiko 6211-722
• Seiko 4411-736
• Seiko 7153-236
• Seiko 3877-515