
Photo by Greubel Forsey (CC BY-SA 3.0), via Wikimedia Commons · Greubel Forsey Double Tourbillon 30° mechanism close-up — represents the Greubel Forsey hand-finishing vocabulary; the Double Balancier is a different complication on the same finishing tradition.
Greubel Forsey
Double Balancier
Ref. Double Balancier
2019–present · 43.5mm · caliber Greubel Forsey Double Balancier (in-house, twin coupled balances)
Recent comparable sales
Market value
Pending ingest
No comparable sales on file yet — the live comp ingest path ships when the data layer is wired (Q3). We don’t publish a fair-value range until real comps land.
In-house manufacture caliber
Not yet rated
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.

