Seiko Cal. 6631 - 431

This Solar model from 1992 features a 38mm Stainless Steel case. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-ee60e9f9c937]

Also known as: Sea Horse, Crown

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1992

Related Models

• Seiko 4418-681
• Seiko 7081-396
• Seiko 4546-606
• Seiko 4597-584
• Seiko 6645-219
• Seiko 4445-912
• Seiko 6671-456
• Seiko 3899-705
• Seiko 0731-616
• Seiko 4532-980
• Seiko 6274-860
• Seiko 7165-668