The HMC 804 is an in-house automatic tourbillon movement which counteracts the effects of gravity in two ways: the one-minute flying tourbillon at 6 o'clock with skeletonised bridges, and the patented double hairspring where two identical hairsprings compensate for any positional errors. Features include an 18-carat gold oscillating weight with engraved H. Moser & Cie. logo, bi-directional pawl winding system, and minimum 3-day power reserve. Used in the Streamliner Tourbillon, Pioneer Tourbillon, and Endeavour Tourbillon collections.
Movement Type
Automatic
Jewel Count
28 jewels
Power Reserve
72h
Frequency
21,600 vph (6 Hz)
Diameter
32mm
Height
5.5mm
Display Type
Analog
Rotor Type
bidirectional
Winding
pawl
BRAND
H. Moser & Cie.TYPE
AutomaticSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2022CALIBER FAMILY
HMC 8xxCOUNTRY
SwitzerlandALSO KNOWN AS