In 1942, the UK Ministry of Defence asked Isotope to produce watches for the armed forces, a request they promptly fulfilled. The result of their efforts was a watch as beautiful as it was robust. It quickly earned the nickname 'Old Radium', as soldiers affectionately called it because of its charismatic luminous hands and hour markers.

 This is what could have happened if it weren't for the fact that Isotope was founded in 2016. However, this gives the brand the advantage of being able to reinvent its story in retrospect. The 'Old Radium' is an ode to the brave pilots who fought against the adversities of World War II, which were often not in their favor. They fought for what was right with their magnificent aircraft, and the 'Old Radium' could have been a welcome companion on their missions. The design is a subtle blend of simple functionality and vintage elegance.

 Several elements give the 'Old Radium' its charismatic character, starting with the case. With a diameter of 40 mm, it can be worn just as easily over the sleeve as under, proving its worth in all facets of an active lifestyle. While stainless steel would be appropriate for the period, bronze offers a more exciting proposition. Opting for CuSn8 bronze, one of the best qualities available in this alloy, the case has a warm tone, close to that of rose gold. This alloy is known for being very pure and consists of 92% copper, 7.5% to 8% tin and about 0.30% phosphorus. It will develop patina at a lower rate than lower quality bronze, but will eventually reveal its unique appearance.

 The dial is highly legible, as one would expect from a pilot's watch. It features Isotope's characteristic black teardrop , with a grained finish, as is the area around it. This detail is set slightly higher to give the dial a bit of depth. The area around the teardrop is available in Ash Grey, Olive Green, and Ox Blood Red , each giving a different touch to the 'Old Radium'. The Arabic numerals, as well as the sword hands, are filled with Super LumiNova in a color reminiscent of the aged radium of vintage watches, hence its name 'Old Radium'. A date window adds another practical touch to this Isotope which, thanks to its black background, blends well with the rest of the dial. The dial is protected by a sapphire crystal with an anti-reflective coating.

 While bronze cases add personality to a watch, this unique alloy can also cause allergic reactions when worn directly against the skin for extended periods. To avoid this, the 'Old Radium' features a titanium case back. A sapphire crystal insert allows owners to see the Swiss-made Landeron 24 caliber. This robust movement is the perfect engine for a sophisticated gentleman's pilot watch, with automatic winding and a 40-hour power reserve at 4Hz/28,800 VpH. The 'Old Radium' is water-resistant to 10 ATM, unique for a pilot's watch. The finishing touch is the comfortable strap made of soft Italian leather. It comes with a buckle engraved with the Isotope name in CuSn8 bronze alloy.

 ATTENTION: For the 1st batch, there are only 10 watches of each color available for shipping now. The 2nd batch will be ready to start shipping in October/November. Once the 2nd batch starts shipping, prices will increase by 10%.

 Bronze is a copper alloy that oxidizes when in contact with oxygen, forming a natural patina that gives your watch a unique character. Over time, your Old Radium Bronze will darken due to oxidation: the patina. This is a natural process and does not imply any quality issues.

 Bronze is a living alloy and is not hypoallergenic – data suggests that over 10% of the world's population is known to be allergic to nickel. Therefore, a bronze watch case may irritate your skin.