Only Watch 2015: Piaget Altiplano 900P Piece Unique

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Piaget has offered a customised piece unique Piaget Altiplano 900P for the 2015 Only Watch Charity Auction.  Piaget has always focused on making slim mechanical timepieces a strong part of their range and the Altiplano 900P is no exception.


The Piaget Altiplano 900P Piece Unique for Only Watch 2015

What makes the Piaget Altiplano 900P special?  It currently holds the record for the thinnest mechanical wristwatch in the world at a very very slim 3.65mm.  To make this a piece unique Piaget has replaced the hour and minute hands with bright red ones.

Since every technical choice had an aesthetic impact, and vice versa, each of the 145 parts composing the Altiplano 38 mm 900P has been trimmed to a size sometimes barely thicker than a hair’s breadth – including some wheels measuring a mere 0.12 mm thin (compared with 0.20 mm on a classic movement).


World Record Holder: The entire watch is only 3.65mm thick

To make the timepiece stand out further, the rim of its case-back is engraved with the inscription “Only Watch 2015 – unique piece”.   The caseback itself is actually the mainplate of the movement.  This was done to achieve the slimness required to be the record holder.

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The case back with Only Watch 2015 – unique piece engraved.

This piece unique will be auctioned off on November 7th in Geneva.  The proceeds will go to the Monaco Association against Muscular Dystrophy, which will contribute to further research into Duchenne muscular dystrophy.

Technical Specifications

Piaget Altiplano 900P 38mm

The world’s thinnest hand-wound mechanical watch

18K white gold watch

Calibre and case merged to form a whole

Black-coated movement

18K white gold pin buckle

Black alligator leather strap

Development time: 3 years

Power reserve: approx. 48 hours

Frequency: 21,600 vph /3 Hz

Thickness: 3.65 mm (case + movement)

Number of jewels: 20

Functions: offset hours and minutes subdial at 10 o’clock

Number of components: 145 (case + movement)

Finishing: circular satin-brushed case-back, black- coloured sunburst satin-brushed bridges, bevelled bridges, sunburst or circular satin-brushed wheels, black-coated screws, dedicated index-assembly with the Piaget “P” signature

Red hours and minutes hands

Case-back engraved with the inscription “Only Watch 2015 – unique piece”

One-of-a-kind model



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