Seiko Cal. 6631 - 106

The Seiko 6631-106 represents an important milestone in Seiko's 1979 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-8d5620d59f8a]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1979

Related Models

• Seiko 0780-866
• Seiko 7088-574
• Seiko 5666-473
• Seiko 6276-135
• Seiko 3811-684
• Seiko 6144-670
• Seiko 7041-231
• Seiko 7188-996
• Seiko 6234-981
• Seiko 3837-626
• Seiko 6169-473
• Seiko 7194-133