AndCavanaugh
504
The Grande Sonnerie was miniaturized 100 years before Dufour, and one can be yours for a the price of a new Submariner!

Franck Muller and Philippe Dufour both exhibited grande et petite sonnerie wrstwatches at Basel 1992.
Dufour painstakingly reverse-engineered and miniaturized a design by the Reymond bothers. The Reymonds were known for supplying rough clockwatch ebauches to Victorin Piguet, which were in turn used to make Patek Philippe, VC, and Breguet movements. Their company later became Valjoux.
Antiquorum, May 1984
Instead of making the movement himself, Franck Muller destroyed a perfectly preserved watch from 1897 with enamelwork by Pierre-Amedee Champod to scavenge the movement.

Very soon another one of these very small pocket-clock-watches (only 42.5 mm) will go under the hammer at Phillips. This one is signed by Parkinson & Frodsham, the movement is generally in the English style with diamond endstone, English lever escapement, gold bushes for the jewels etc… though with a Swiss-style tandem winding system and without an English style free-sprung balance.

The estimate is astonishingly low. If they’d had the foresight to weld lugs on when they made it, it might be a million-dollar watch today. Patek Philippe made a pair of clock wristwatches for the English market during the 1930s (198'493 and 198’497) but these were ship's bell chiming.
Hopefully, this watch is spared the fate of its sister. I will be bidding on it, but I will probably bow out after $5k.