This watch is the first model ever delivered to a private customer. The first model produced was kept by the manufacturer for their museum, making number 02/75 the first Gyrotourbillon available to an individual.
The "Gyrotourbillon 1" is probably the most well proportioned tourbillon wristwatch ever made, and the most elegant in operation. It was produced by watchmaker Eric Coudray and designer Magali Metrailler. This watch is a tour de force of watchmaking and contains 600 individual parts, instead of jointly providing power in direct connection with the center wheel as in most two-barrel watches, the Gyrotourbillon barrels actually transmit power via the first to the second in a linear fashion, to provide increased and more even power. The barrels are capped with sapphire crystal to reduce friction and allow viewing of the mainsprings. This watch also has a true equation of time mechanism, a very unusual feature in a wristwatch. Three new patent mechanisms are incorporated in this watch:
The Spherical Tourbillon
The caliber 177 is a dual-axis tourbillon of extremely lightweight construction, weighing only 0.035 grams. This is achieved by the outer cage being machined from aviation-grade aluminium and the inner one from titanium. The outer cage rotates at a speed of one revolution per 60 seconds and the inner one at a rate of 24 seconds or 2.5 times per minute, making an extremely graceful display and allowing full visibility of the gold balance.
Double Retrograde Date
This intriguing and exciting mechanism works in an ingenious manner: one hand is in use for the first half of the month and the other waits in the wings to the left until the changeover, which happens on the 16th of the month.Throughout the day the mechanism stores small amounts of energy from the movement, releasing it all at once at midnight in one instantaneous jump - commonly called the "whip". The advantage of this mechanism is that the calendar functions work without any adverse effect upon the timekeeping of the watch.
Eric Coudray decided not to simply add a standard perpetual calendar module to the caliber; instead, he designed an entirely new patented mechanism which makes the necessary corrections to the day, date and month for every day of the year of a four-year cycle.
1 as new
1 as new
HANDS 01 original
1 as new
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