Seiko Cal. 6631 - 786

The Seiko 6631-786 represents an important milestone in Seiko's 1976 lineup. It features a Silver dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-e3356515b4f5]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1976

Related Models

• Seiko 6364-485
• Seiko 5253-168
• Seiko 5260-125
• Seiko 6348-778
• Seiko 4431-914
• Seiko 6695-948
• Seiko 7016-105
• Seiko 7151-233
• Seiko 6186-557
• Seiko 5286-721
• Seiko 4596-686
• Seiko 7030-735