• cal. GF02 manual winding frosted with polished beveling ruthenium finished movement, 43 jewels in gold chatons, monometallic compensation balance rotating within a double tourbillon, inner 1-minute tourbillon inclined 30° angle in relation to outer 4-minute tourbillon • sapphire crystal dial revealing the movement, constant seconds dial at 9 o'clock, power reserve indication at 3 o'clock • 18K pink gold oversized case, band with engraved "Message from the Inventor Watchmakers" text in relief, sapphire crystal display back secured by six screws • case, dial and movement signed • with an 18k pink gold Greubel Forsey twin folding clasp