BOVET 1822 The Récital 28 Prowess 1. Solving the terrestrial time problem with a world timer...

#bovet #worldtimer #daylightsavingtime ‪@Bovet1822‬
The BOVET Récital 28 Prowess 1 is a result of over five years of development, featuring meticulous hand-finishing, hand-engraved bridges, and a limited production of only eight timepieces per year in 18 carat Red Gold, 950 Platinum, and Grade 5 Titanium. The BOVET Récital 28 Prowess represents a significant leap in solving terrestrial timekeeping problems, ensuring accuracy in global timekeeping.

The World Time system

The 24 rollers around the central dial each have four positions, all controlled through the crown – UTC, AST (American Summer Time), EAS (Europe and America Summer Time), and EWT (European Winter Time). Pushing the crown rotates each individual cylinder 90 degrees, so every time zone can be individually set for each of the four time periods of the year. This has never been possible with a world time timepiece ever before.

The Tourbillon

The movement powering the Récital 28 Prowess 1 is brand new, using BOVET’s patented double-sided flying tourbillon as a base. The tourbillon has been expanded – the escapement is completely on one side of the center fixation point, with the cage carrying the balance wheel and BOVET’s in-house balance spring on the other side, making it even more transparent and mesmerizing than before. The redesigned cage is the lightest BOVET has ever used, as well (62 components, with 39 being completely new), with a total weight of 0.35 grams). The Récital 28 Prowess 1 is housed in a brand-new size for BOVET’s trademarked Writing Desk case (46.30mm) to allow the tourbillon, which is in the 12 o’clock position, enough space at the widest part of the case.

The Perpetual Calendar

The date, leap year indication, and the month are on rollers, so when they get to the last day and month respectively, the date rolls back like a slot machine, with a special dampening system to stop it gently, while the other two roll forward.
To safeguard this complicated movement, a patented Function Isolator was developed so that the perpetual calendar cannot be corrected during the “safety zone,” when the indications are in the process of changing.

One more reason to stay up until midnight at the end of the month and especially at the end of the year to watch all the rollers move. On the back of the timepiece, BOVET has revealed the inner workings of the perpetual calendar mechanism for the first time ever, and it is a visual treat indeed.

The Decoration and Finishing

Each of the 744 components are hand-finished, the plate is decorated with perlage and Cotes de Geneve, and the bridges are hand-engraved as well. Of particular attention is the beveling of the major structures of the movement — the method used is called angle rentrant. A corner is rentrant when two chamfers meet on the inside. The intersection must be clean, with a single line formed at the meeting point. This type of corner is the most difficult to produce, and the sharper the point, the more difficult it is. It requires expert hands — at present, there is no machine capable of producing it.

Case
Type: Dimier "Writing Desk" case
Diameter: 46.3mm diameter, 17.85mm thickness
Material: 18K Red Gold/Platinum/Polished Grade 5 Titanium
Water resistance: 30m

Movement
Caliber: R28-70-00X
Type: High-watchmaking hand-wound manufacture movement
Components: 744
Number of Jewels: 51
Frequency: 18.000 A/h (= 2.5Hz)
Power reserve: 10 days
Functions: Hours, minutes, seconds on the flying tourbillon; World time on rollers with UTC, AST (American Summer Time), EAS (Europe and America Summer Time), and EWT (European Winter Time); Perpetual Calendar with rollers for the date (retrograde), the month, and the leap year, disk for the day.

Decoration
All components hand-finished; special "Rays of Light" hand-engraving on the bridges; skeletonized perpetual calendar; 40 hand-done angle retrant.

Dial
Inner and outer ring in aventurine; rollers in black PVD

#wherethewatchesarethestars