Brand: Milus

Model: Archimedes 20 ATM Super Compressor Automatic Diver ref. 30.160 (RARE); Swiss Made

Case: Solid stainless steel Super Compressor case with screw-down back is approximately 36mm excluding the dual-matching original Milus signed/hatched crowns

Bracelet: 18mm vintage-style stainless steel mesh bracelet (adjustable size via sliding clasp)

Movement: ETA self-winding automatic movement with center sweeping-seconds hand and traditional quick-set date display at 3 o'clock; 21,600 BPH; Swiss Made

Features: Stunning original brushed silver dial with fantastic yellow Tritium patina; original Tritium hands with matching yellow patina; original center sweeping-seconds hand; original rotating inner dive bezel with royal blue accents displays elapsed time and rotates via the top crown; traditional quick-set date display at 3 o'clock; solid stainless steel Super Compressor case with cool Milus caseback design and original domed acrylic crystal

Condition: Fantastic original condition overall with minor honest wear consistent with age and light use; solid stainless steel Super Compressor case is razor sharp and appears to be completely unpolished with the original edges and bevels in tact; crisp caseback with unique Milus design exhibits a few minor scratches; gorgeous original brushed silver dial with all Tritium luminous elements aged to an attractive yellow hue; original Tritium handset with all luminous material in tact and matching; original domed acrylic crystal exhibits some minor wear

Other: The Super Compressor case played an important role in the history of dive watches. Its innovative design utilizes a unique "compressor" system whereby the case becomes more watertight as the watch descends deeper. As atmospheric pressure increases, the caseback is compressed on the gaskets creating a tighter seal. This was a major selling point back in the 1960s and Super Compressor watches stand tall as some of the most coveted dive watches today. This rare Milus Archimedes isn't just your average Super Compressor with a black dial and bezel though... Take a closer look at the vertical brushed silver finish on the dial and the matte silver internal rotating dive bezel with royal blue accents. This elapsed-time (ET) bezel rotates via the top crown and was less prone to accidental rotation than a standard external bezel. Read more about these collectible Super Compressors in a great guide assembled by our friends at Worn & Wound.