Collection centre seconds-hand
The central seconds appeared as a practical evolution, offering a direct and precise reading of the seconds thanks to a more detailed graduation of the dial.
Widely adopted during the Second World War for military and technical purposes, it soon became a benchmark of functionality.
Each model in this collection is equipped with a vintage mechanical movement, restored and hand-decorated in my workshop in Porrentruy, combining rigor and authenticity.
Caliber 286
Calibre 286 manufactured between 1961 and 1964
Mechanical movement with manual winding
Diameter : 30 mm
Thickness : 5 mm
Power Reserve : 43 hours
Number of jewels : 16
Frequency : 18000 vph
Hairspring : Breguet overcoil
Finished bridges : lapping, 5N rose gold-plated
The baseplate : rhodium-plated
Screws and regulator : blueing
Crown and ratchet wheel : radially brushed