Grading System | |
---|---|
Grade: AA |
Very good |
Case: 3-6-8 |
Good Slightly oxidized Slightly scratched |
Movement: 3* |
Good Overhaul recommended, at buyer's expense |
Dial: 3-8-9 |
Good Slightly scratched Scratched |
Brand Rolex
Model Bubble back
Reference 3131
Year circa 1930s
Case No. Invisible
Material 14K yellow gold
Diameter Ø 32 mm
Caliber 9 ½”
Signature Case, Dial and Movement