A year after the launch of the Clifton Baumatic with its in-house automatic Baumatic BM12-1951A COSC-certified movement, Baume et Mercier have returned with a Perpetual Calendar to join the fold.
The Baumatic calibre had been Baume et Mercier’s first in-house movement, developed with the assistance of the Richemont Group and Manufacture Horlogère ValFleurier, featuring up to 120 hours of power reserve and anti-magnetic up to 1,500 gauss.
This new piece is the first Baumatic complication, and has been achieved by the addition of a module atop the BM12-1951A movement. The new movement is called the Baumatic BM13.1975AC-1, and features circular graining on the bridges and a sandblasted and snailed base plate. The gold-plated and skeletonised rotor features Côtes de Genève and more snailing. Like the first Baumatic Chronometer, this is also able to be COSC-certified.
For those new to perpetual calendars, as well as the time this watch also displays the date (3 o’clock), the day of the week (9 o’clock), the month and leap year cycle point (12 o’clock), and the phases of the moon (6 o’clock). The date does not need correcting until March 1, 2100.
The very likeable porcelain-like white dial is again present on this model, and the use of gold plated hands plus blued hands for the calendar sub dials makes for as classical a perpetual calendar look as one can get.
Unlike the launch Baumatic model, this perpetual calendar will only be available in 18 carat red gold, measuring 42mm with a thickness of 12.1mm (the Baumatic Chronometer was 40mm with a thickness of 10.3mm) and comes on a black alligator strap with an 18 carat red gold buckle.
[Photographs by thewatchnerd]