world’s thinnest mechanical watch Altiplano 38mm 900P — Piaget

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A story that became history

The first ultra-thin hand-wound move­ment is cre­ated by Piaget in 1957 and already often only 2 mm. In 1960, Piaget fixed first record thanks to Cal­i­bre 12P, the world’s thinnest auto­matic move­ment with its 2.3 mm. In sub­se­quent years, other records came one after another, the Cal­i­bre 600P, the tour­bil­lon move­ment with man­ual wind­ing shape of the world’s thinnest auto­matic move­ment and the 1208P, which is also the thinnest in its category.

Ultra-thin watches styles

Out of a total of 35 gauges so far pro­duced by Piaget as many as 23 are ultra-thin , 1 and 2 of them includ­ing the Alti­plano 38 mm P 900 entered in the Guin­ness Book of World Records for their sub­tlety . Design­ing a gauge typ­i­cally involves not only a minia­tur­iza­tion of each com­po­nent, but also an almost total rev­o­lu­tion of their place­ment, in order to exploit every tenth of a mil­lime­ter of the cash that will con­tain it.

piaget Altiplano 38mm 900P

Piaget Alti­plano Watch

Alti­plano from the record pre­sented these days at the SIHH 2014 is the result of the efforts of the two poles con­struc­tive Piaget La Cote aux Fees, which are tra­di­tion­ally pro­duced move­ments and the other in Plan-les-Ouates, which are cre­ated crates.

Some parts of Alti­plano 38 mm were cut down to a size slightly larger than a human hair , includ­ing some wheels that mea­sure only 0.12 mm — 0.20 mm com­pared to a clas­si­cal movement.

But accord­ing to what Piaget says the secret of this struc­ture lies in the extreme thin­ness of the case, which also serves as the bot­tom platen. Want­ing melt Cal­iber and cash, cash and printed start­ing from the bot­tom which houses the mechan­i­cal parts. Required the rever­sal of the con­struc­tion of the move­ment in order to have the bridge from the side of the dial, the end result also pro­duces an aes­thetic effect, mak­ing vis­i­ble the bridges themselves.

To save other pre­cious mil­lime­ters, the entire mech­a­nism and the struc­ture of the hands are con­tained within the thick­ness of the bar­bell, with a dial of hours and min­utes decen­tral­ized. The gear­ing , which is also fully exposed, as well as a fun­da­men­tal ele­ment of a Gauge sort­ing of its oper­a­tion becomes in effect part of the design , in this case too kinetic, the world’s thinnest mechan­i­cal watch. Given the envi­ron­ment of space for­ever in debt as opposed to the tra­di­tional bar­rels — which are also set by the side of the platen — Piaget had to pause it and secure it to a deck on the side of the dial. Despite these “tricks” the power reserve is approx­i­mately 48 hours.

Given the space avail­able glass could press on the hands, stop­ping the move­ment. In order to avoid this prob­lem, Piaget has devel­oped a device for which a patent has been applied for. Instead of fix­ing the hands over the bridges, they find them­selves under the same suc­ceed­ing in order to recover another space between the pin­ion and the crys­tal. When the lat­ter is deformed by the pres­sure, does not press on the hands — posi­tioned below the level of the bridge — but presses on the bridge of the gear­ing thus avoid­ing any effect on the oper­a­tion of the movement.

world's thinnest mechanical watch Altiplano 38mm 900P

Fin­ishes viewing

We have seen how the roads taken to be able to get the thinnest watch cat­e­gory have meant that most of the 145 ele­ments of the gauge to be “the light of the Sun”, so it was a must in addi­tion to their shrink­ing, their posi­tion , their involve­ment with the case, give care­ful atten­tion also to the fin­ish. Obtained from the sinker cap and satin and sand­blasted while the wheels are fin­ished and per­lage soleil. Exca­vated to reveal the sub­tle mechan­i­cal com­plex­ity of the Alti­plano 38 mm 900P, the bridges cham­fered and satin with sun­ray effect are treated in black to con­trast with the white gold case. The rac­quet con­trol is cus­tomized with the P for Piaget.

It is impor­tant to remem­ber that build­ing an ultra-thin watch does not just mean “raise” , or to dis­ap­pear almost every­thing you see or not, but also worry that the whole mechan­i­cal struc­ture is not thereby dra­mat­i­cally weak­ened. In my opin­ion one of the proofs that the Mai­son has always proven to excel in ultra-thin watches comes from the fact that often — as if that were not enough — he also enjoys pro­pose the skele­ton ver­sions of his already very short projects.

Record in High Jewelry

In the almost total lack of space, a realm of ultra-thin watch, Piaget has found a way to cre­ate a ver­sion of the Alti­plano 38 mm High Jew­ellery 900P which has a total of 4.71 carats, and with his 5.65 mm thick­ness, sets a new record by becom­ing the ’ Haute Hor­logerie watch thinnest in the world . Its 304 baguette-cut dia­monds are on the bezel and on the lugs and a bril­liant cut pro­files. The hour cir­cle of the dial and is also embell­ished with 33 baguette-cut dia­monds. Piaget was able to embed the screws even bridges and gearing.

 

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