Seiko Cal. 6631 - 882

The Seiko 6631-882 represents an important milestone in Seiko's 1977 lineup. It features a Burgundy dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-b8a67bcbc45a]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

42mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

35j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1977

Related Models

• Seiko 4425-697
• Seiko 5696-547
• Seiko 7027-493
• Seiko 6214-699
• Seiko 3881-653
• Seiko 6130-510
• Seiko 6389-502
• Seiko 4528-243
• Seiko 6265-962
• Seiko 6395-755
• Seiko 5254-854
• Seiko 6316-386