Instructions about Omega Watch Models

Every model of Omega watch is 8 numbers.
  They seem like A B C D . E  F  .G  H
The first number represents the production lines:
1=Constellation
2=Seamaster
3=Speedmaster
4=DeVille (DeVille Prestige and Symbol)
5=Louis Brandt(DeVille tourbillon)
The second number represents the type of the material:
1=Gold Case on Gold Bracelet
2=Steel-Gold Case on Steel-Gold Bracelet
3=Steel-Gold Case on Partial Steel-Gold Bracelet
4=Steel-Gold Case on Steel Bracelet
5=Steel Case on Steel Bracelet
6=Gold Case on Leather Strap
7=Steel-Gold Case on Leather Strap
8=Steel Case on Leather Strap
And the third,fourth numbers are related with the series of productions:
The third number represents the size/the movement:
0=Coaxial, 3=Pro Diver full-size Automatic or GMT Automatic, 4=Pro Diver full size Quartz, 5=Pro Diver mid size Automatic, 6=ProDiver mid size Quartz, 7=Ladies Auto, 8=Ladies Quartz, 9=Chronograph Automatic
The fourth number represents the watch circle:
Bezel codes are not consistent by color - they vary by model and case material.
1=Blue (Steel Pro) OR Gold (Gold Pro) OR Brushed Steel (Titanium Pro Diver), 2=Polished Steel (Steel Pro) OR Gold (Two-Tone Pro) OR

Blue (Gold Pro) OR Polished White Gold (white Gold Pro, silver dial limited edition 150th Anniv. Pro) 3=Plain (Aqua Terra), Steel w/black numbers (Titanium Diver) 4=Black (Steel GMT or Steel Pro) OR Yellow Gold (Yellow Gold GMT),                             5=Steel w/blue numbers (Steel Diver),6=Gold (Titanium/Tantalum Chronograph), 8=Polished Steel (Steel Chronograph or GMT) OR Gold (Two-Tone Chronograph) OR Blue (Titanium Chronograph), 9=Blue (Steel Chronograph)
The fifth number represents the color of watch dial plate:
1=Champagne 2=White 3=Silver 4=Gray 5=Black 6=Ivory
8=Black
The sixth number represents the mark of hours on the plate:
0=Mixed 1=Indexes 2=Arabics 3=Roman 5=Diamonds
The seventh and eighth numbers represent the color of watchband:
01=Black 02=Brown 03=Blue 04=Green

 

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