Milus Archimedes Super Compressor

Milus Archimedes Super Compressor

What does an obscure brand like Milus have in common with horological heavyweights like Jaeger-LeCoultre, Longines, Blancpain, Universal Geneve, and Zenith? They all sold the same damned watch.

Super Compressor diving watches are a category unto themselves, and Swiss brands big and small sold versions of the distinctive dual crown watches that have been one of the most popular types of dive watches for years.

The Super Compressor name refers to the innovative case design, which utilizes a "compressor" system that’s designed to become more watertight the deeper that the watch went under water. As the atmospheric pressure increases along with depth, the case back is compressed, pushing on the gaskets and creating a tighter seal.

The compressor case wasn’t any better at preventing water intrusion than a screw-down crown (in fact, it was probably worse), but due to their good looks, compressor cases proved to be popular during the 1960s. Eager to get into the burgeoning dive watch market, many of the best Swiss brands turned to EPSA (Ervin Piquerez, S.A.), the leading manufacturer of compressor cases at the time, for cases to build their divers around.

It is perhaps the internal bezel that has become the most endearing feature of Super Compressors to collectors today, and the idea behind them is that they’re less prone to accidental rotation that an external bezel. They worked out great for warm water divers, but anyone with gloved hands would have been out of luck (but at least stylish!).

Each execution of the Super Compressor style riffs on the familiar formula in different ways- though perhaps none as distinctive as this one! While most variants are built around simple black dials and bezels, this rarely seen Milus Archimedes goes in the total opposite direction and features a bold orange dial and a gray & blue internal diving bezel.

For more information on the history of compressor-cased diving watches, click over to, HERE.


Stainless steel case is approximately 37mm (excluding crowns). ETA Automatic Caliber 2783.

Overall Condition: Stainless steel case is in good condition with sharp bevels and no signs of over-polishing. Case does have signs of use and wear in keeping with its age, including scratches and tool marks throughout. Dial is in very good condition with crisp printing and no signs of discoloration. Luminescent elements on the hour markers and hands have gained a fine even patina. Signed crowns; Milus case back has some tool marks and scratches but is in otherwise good condition.

Includes one 17mm rubber Tropic strap.

SKU: TT01055

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