Movement for mechanical chronograph with quartz regulator
AssigneeRichemont International SA
InventorsWilly Meier, Alexandre Michalet, Kurt Straumann, Daho Taghezout
Life of this patent
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Abstract
Movement for chronograph watch comprising: a barrel (1); a main gear train (RH) for driving one or more current time indicators (43); a regulator member comprising a generator (8) driven by the main gear train (RH), the generator powering an electronic regulation circuit (80) to control the speed of rotation of the main gear train as a function of a quartz oscillator (81); a chronograph gear train (Rc) that can be brought into mesh with the main gear train (RH) to drive a timer indicator (152). The chronograph gear train can be brought into mesh with a wheel (8) that performs more than one revolution per minute.
Claims7
A movement for a chronograph watch comprising:
- a barrel;
- a main geartrain for driving one or more current time indicators;
- a regulator member comprising a generator driven by the main geartrain, the generator powering an electronic regulation circuit to control the speed of rotation of the main geartrain as a function of a quartz oscillator;
- a chronograph geartrain that can be bought into mesh with the main geartrain to drive a timer indicator;
- wherein the chronograph geartrain can be brought directly into mesh with a wheel of the generator that performs more than one revolution per minute.
Dependencies are inferred from the claim text.