SIHH 2018 – Speake-Marin revisits one of its iconic Haute Horlogerie model and brings its movement know-how to redesign the dial to make it fully Openworked on the left-hand side.

With its manufacture movement fully developed in Neuchatel area, Switzerland, the Vertical Double Tourbillon Openworked embodies perfectly the Speake-Marin Haute Horlogerie design and know-how. At least two weeks are necessary to assemble this very complicated movement by a master watchmaker.

Nestled in the iconic Piccadilly case, the Vertical Double Tourbillon Openworked has the widest diameter of the Speake-Marin collection: 46 mm to host the two tourbillon cages and the dial with its day/night and power reserve indicators.

The opening of the dial required to re-design the full movement so as the two bridges could hold the Tourbillons from the plate. These two tourbillons benefit from a rate equaliser, Speake-Marin patented. This equaliser links the two wheels by a spiral, which compensates speed from one tourbillon to another so as to ensure a perfect chronometry (please refer to the graph on the right-hand side).

Matt black Tourbillon bridges, matt black floating dial with gold-coated Arab numbers…  the overall design is definitely contemporary.  Finally, heart-shaped golden hands sign this rare Haute Horlogerie piece, as a Speake-Marin hallmark.