Calibre TM3001

A true heir to Thomas Mercer’s illustrious clockmaking legacy

Calibre TM3001
 

30 DAYS FLYING DETENT TOURBILLON

The Observatory is a uniquely complicated marine chronometer. Its mechanism features fifteen complications, including a rare flying detent tourbillon and double fusee-and-chain transmission.

The movement’s power source is a pair of large cylindrical barrels that convey their energy to the mechanism through a fusee-and-chain system. These mainspring barrels are connected to the fusee, a grooved cone with a curved profile. This acts as a gearbox, constantly changing gears in order to provide the movement with an almost constant level of torque. The mechanism’s solid, undeformable metallic chain is comprised of hundreds of components and the fusee-and-chain system provides the escapement with a steady stream of energy, stabilising the mechanism’s frequency.

 

POWER RESERVE

30 days

 

ESCAPEMENT

Flying Detent-Tourbillon with double fusee-and-chain drive

 

MAIN FUNCTIONS

Perpetual Calendar, Equation of Time, 24 Time Zones

 

DIMENSIONS

Diameter: 307mm
Height: 120mm

 

THE CALIBRE TM3001 IS FOUND IN THIS CHRONOMETER

Observatory

Grand Complication
 

“Thomas Mercer not only celebrates a fundamental part of horological history, but it does so with exquisite taste. A true masterpiece, the Observatory is a pleasure to the eyes of both the horological novice and the discernible collector.”

Santiago Tejedor
Horas y Minutos