Founded in 2016 by fourth-generation watchmaker Sébastien Muller, Swiss indie brand Brellum started out with the Duobox that packed a pair of box-shaped sapphire crystals: one over the dial and another on the caseback. This was a retro-inspired chronograph with a 41.8mm steel case, piston-style pushers, and a COSC-certified Valjoux 7750 movement. A year later, […]