Want to carry around a bit of outer space with you? These RJ-Romain Jerome watches might be the closest you’ll get, aside from meteorite jewelry.

Having inherited the highly distinctive case of the Moon Invader collection, a circle in a cambered 46 mm square, the […] watches also feature steel fused with fragments of Apollo 11. The four ball-and-socket joints at the corners of the case are functional and designed like the legs of the lunar landing module in American lunar expeditions. Boasting a highly sophisticated construction, and mounted on axles anchored in the case, these ball-and-socket joints hold the lugs of the rubber straps and their mobility make the watch easily adaptable to all wrist sizes. On the back of the watch, a disc made of Moon SilverRJ – a low-oxidation silver fused with moon rocks – reproduces the surface of the Moon.