Live pricing is coming soon. Get notified when it is available for this reference.
Community + OSINT signals haven’t landed for this reference yet. We don’t publish a rating against zero signal — the number would mean nothing. Editorial body + caliber + market value still surface above; ratings appear once the signal corpus does.
The DB2109 tourbillon runs at the seconds and must complete exactly one rotation per minute; verify with a stopwatch.
| Area | What to check | What is correct | Red flag |
|---|---|---|---|
| movement | Tourbillon rotation rate | Tourbillon cage completes exactly one rotation per 60 seconds | Rotation rate deviating from 60 seconds; regulation issue requiring service |
| dial | Blued titanium dial | Blued titanium dial with depth and variation consistent with controlled oxidation | Flat uniform blue; non-genuine dial substitution |
| caseback | DB2109 serial and documentation | Matching serial number and original De Bethune certificate | Missing or non-matching documentation; requires expert authentication |
The DB2109 Grand Bleu features a seconds tourbillon and a striking blue dial aesthetic. Caliber DB2109 in titanium or rose gold at 42mm. A tourbillon variant focused on the blue dial presentation and seconds indication through the tourbillon.
| Blue dial with no numerals; time reading via the tourbillon position as the seconds indication. The "Grand Bleu" name refers to the dominant blue aesthetic. Case in titanium or rose gold. |
|
