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Concord Delirium Squelette II 5070615-971 - 18K Yellow Gold Skeleton Dial

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A Record Breaking Feat Of Engineering
In the late 1970s, the Swiss watch industry was in a fight for its life against the rise of quartz. Concord's response was not to compete on price, but on pure technical audacity. The Delirium was born from this fight, a watch so thin it shocked the world. On its debut in 1979, the first Delirium measured just 1.98mm thick, an achievement made possible by integrating the movement's components directly into the caseback. This piece, the Delirium Squelette II, pushed that innovation even further. At just 1.43mm thin, it was a record-breaker that also showcased the intricate art of skeletonization.
The Art Of The Impossible
What makes this Squelette II so significant is its combination of extreme thinness with an openworked dial. While other Delirium models hid their revolutionary construction behind a traditional dial, this version puts the engineering on full display. It was a statement piece that celebrated the microscopic world of its quartz movement. In an era defined by excess, the Delirium became a status symbol among a celebrity crowd, representing a fusion of high fashion and cutting-edge technology that was impossible to ignore.
An Exceptionally Preserved Example
This example is in excellent condition. The 18k yellow gold case retains its sharp, delicate lines, and the skeletonized dial is clean, offering a clear view into the groundbreaking movement. It is fitted on a black crocodile strap with its original Concord buckle. As with every watch we offer, this piece has been verified as mechanically sound and is ready to wear.
A Wearable Piece Of Horological History
This watch is for the collector who appreciates not just the aesthetics of a timepiece, but the story behind it. The Delirium was a pivotal watch, a symbol of Swiss defiance and ingenuity that helped shape the future of watchmaking. Its influence can even be seen in the construction of the first Swatch watches. Owning this Squelette II is owning a piece of that history. It is a conversation starter and a testament to a time when breaking the rules of physics was the only way to move forward.
Key Specs
Reference: 5070615-971
Model: Delirium Squelette II
Year: 1980
Movement: Quartz
Case Size: 24x34mm
Bezel: 18K Yellow Gold
Strap: Black Crocodile with Original Buckle
Dial: Skeleton
Metal: 18K Yellow Gold
SKU: 1420

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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….

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4 months ago

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