Selection of Watches & Wonders complication watches in 2020

Complications have always represented the pinnacle of the watchmaker’s art, as demonstrated by this selection from Watches & Wonders (in order of appearance):
Vacheron Constantin – Traditionnelle Tourbillon Chronograph
Jaeger-LeCoultre – Master Control Geographic
Baume & Mercier – Clifton Baumatic Day-date Moon Phase
IWC – Portugieser Tourbillon Retrograde Chronograph
Speake-Marin One&Two Openworked Tourbillon
Roger Dubuis – Excalibur Diabolus in Machina