Last January at the Salon International de la Haute Horlogerie, Baume & Mercier revealed its first in-house mechanical self-winding movement, the Baumatic™ caliber.
This new caliber responds to the problems encountered by self-winding watches, and provides innovative solutions in four distinct fields:
– Power reserve
– Chronometric accuracy
– Sensitivity to magnetic fields
The power reserve of a standard watch movement ranges from 40 to 70 hours when it is fully wound. All the Baume & Mercier watches equipped with the Baumatic™ movement have a high-performance 120-hour power reserve, i.e. 5 days.
A standard watch requires regular time-setting, from the instance its daily variation in precision is around 20 to 30 seconds per day. In addition to its COSC-certified chronometer model, all of the Baume & Mercier watches equipped with the Baumatic™ movement are adjusted to a precision rate of -4/+6 seconds per day and offer a stable level of precision throughout the whole of the power reserve.
There are many effects that may be caused by magnetic fields: the most common being the movement suddenly stopping or a loss of precision. The Baume & Mercier Clifton Baumatic™ watch is resistant to at least 1,500 Gauss, a resistance 25x higher than the current ISO norm.
A watch movement is a complex mechanism comprising numerous mobile miniature components. Their perpetual interaction results in friction and wear, which can be minimized by lubrication, a delicate issue in any watch movement. The quality of the various lubricants for the Baumatic™ movement makes it possible to prolong the maintenance service intervals beyond the generally recommended five years.
Discover the four performances offered by the Baumatic™ movement via the four videos, which illustrate each of these innovations.
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