Seiko Cal. 5631 - 862

The Seiko 5631-862 represents an important milestone in Seiko's 1985 lineup. Powered by the 5631 caliber with 18j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-cdc96843aec1]

Also known as: Helmet, Sea Horse

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1985

Related Models

• Seiko 6357-617
• Seiko 5694-944
• Seiko 4484-334
• Seiko 3824-885
• Seiko 4570-866
• Seiko 6647-840
• Seiko 4531-482
• Seiko 6233-783
• Seiko 6391-136
• Seiko 6125-358
• Seiko 0725-227
• Seiko 6228-846