Jaeger-LeCoultre announced a new version of their Atmos clock today, with a new-generation glass for a totally colorless, see-through effect.

The Atmos clock is a unique mechanical design that’s powered by atmospheric changes. A single degree of variation in the room temperature will power the clock for two days. “Thanks to a very simple mechanism invented by engineer Jean-Léon Reutter in 1928 and brought to market by Jaeger-LeCoultre in the 1930s, the Atmos clock lives on air,” according to the manufacture.

The Atmos Transparente comes in a clear rectangular glass cabinet, measuring 250 mm x 185 mm x 145 mm, with an anti-reflective coating, offering a crystal clear view of not just the dial, but also the entire mechanism which drives it. For this new model, the dial and mechanism are mounted via three bridges to the rear glass, making it appear as though it’s floating when viewed from the front.

The glass dial features an Art Deco-style, with transferred hour markers and minimalist hands, with a black polished finish. The base is stainless steel is rhodium plated and has a dual polished and satin-brushed finish.

The Atmos Transparente displays hours and minutes, driven by the caliber 563 movement, which is assembled by hand and boasts a “virtually perpetual” power reserve, according to Jaeger-LeCoultre. The mechanism consists of 217 total parts and utilizes an annular (ring-shaped) balance wheel. (Ref. Q5135204)

Retail is $9,450. Learn more at Jaeger-LeCoultre.