Seiko Cal. 5631 - 806

The 5631-806 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5631 caliber with 29j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-82b235a67676]

Also known as: Sumo, Shogun

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1975

Related Models

• Seiko 6289-980
• Seiko 4590-646
• Seiko 4426-303
• Seiko 4420-368
• Seiko 3863-461
• Seiko 3897-685
• Seiko 3824-423
• Seiko 6670-717
• Seiko 4524-523
• Seiko 5213-551
• Seiko 5295-663
• Seiko 0777-171