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Piaget Ultra Thin 9643 - 18K Yellow Gold Green Jade Dial

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Details
The Art Of Reduction
Piaget built its modern identity on the pursuit of thinness, a philosophy perfectly captured by the revolutionary 9P movement launched in 1957. At just 2mm thick, it was a record-setting caliber that allowed the brand to focus on pure, minimalist design and exotic materials. This reference 9643 is a prime example of that ethos. The solid gold case serves as a simple, elegant frame for the main event: a dial crafted from a single piece of natural green jade. It represents an era when technical mastery was expressed through reduction, not complication.
A Dial Of Natural Beauty
The most compelling feature of this watch is its green jade dial. Cut from natural stone, its pattern and depth of color are entirely unique, meaning no two examples are exactly alike. This was a signature of Piaget during the 1960s and 70s, setting their watches apart from everything else on the market. The combination of a precious metal case and a one-of-a-kind mineral dial creates a watch that is both a piece of high watchmaking and a work of natural art.
Excellent, Uncracked, And Ready
This example is in excellent condition. The 18K yellow gold case is sharp, and the crystal is clean. Most importantly, the green jade dial is flawless, with no cracks or fractures, which is the primary consideration for any vintage stone dial watch. It comes fitted on a black leather strap with its original Piaget buckle. As with every watch we offer, this piece has been verified as mechanically sound and is ready to wear.
A Bond With The Machine
This watch is for someone who appreciates the intersection of mechanical engineering and organic beauty. The ultra-thin case disappears on the wrist, making it one of the most comfortable dress watches ever produced. Because it houses a manual-wind movement, it requires daily interaction. The ritual of winding the watch each morning creates a direct, physical connection between the owner and the machine, a tactile experience that is lost with an automatic. It is a subtle, sophisticated choice that stands apart.
Key Specs
Reference: 9643
Model: Ultra Thin
Year: 1970s
Movement: Manual
Case Size: 32mm (Excluding Crown)
Bezel: 18K Yellow Gold
Strap: Black Leather with Original Buckle
Dial: Green Jade Stone
Metal: 18K Yellow Gold
SKU: 1650

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Dan Young
4 months ago

I knew I was gonna like Danny, based on his name, but nothing could’ve prepared me for how great of an experience this was. He had the most beautiful 70s Seamaster Cosmic on his website and I was set to be married 2 days later - I arranged to buy it but before leaving we both realized it needed to be serviced. I panicked, because I was literally buying this for my wedding, and Danny being the legend he is, loaned me a nearly identical Seamaster to make sure I could get through the event Never have I had someone go so above and beyond for me, especially while purchasing one of the lesser priced items in their inventory. He serviced my watch and exchanged it with me after the wedding on a super fast turnaround timeline. I would sincerely recommend you visit this guy, you will not be disappointed Edit: adding a pic of the loaner (two tone) and the owner (crosshair)

Patrick Farella
5 months ago

Great service and shop. Danny and his team were incredibly accommodating, professional, and kind. Great selection of vintage watches. Their store is the hidden gem in the diamond district.

Zee06
2 months ago

This was my first real luxury watch purchase, a Rolex 15200 Date 34mm, I own Tissots and a Laco, but those are entry level luxury watches. I found Danny’s Vintage Watches online, and had great feedback both on Google, Chrono24 and the Reddit watch community. So decided to give him a shot as buying online can be a crap shoot. Ordered Monday night, was at my doorstep Friday morning. Despite the watch being over 30 years old, serial number says it’s from 91, the watch looked new. Didn’t come with box or papers, and was shipped in a plastic sleeve wrapped in bubble wrap. Danny was always available to answer questions. I’ll be buying from Danny again for the next purchase…saw a couple of Speedmasters on his site I liked….

Mohammed Islam
4 months ago

Can't recommend Danny's vintage watches enough!!! My first Omega ever and im in love have been wearing every day since I purchased it. Danny's shop is a must visit if you are in NYC looking for a watch!!!