Lumina comes from the Latin word for light, and the Tsar Bomba Lumina is designed to catch it. Across the dial, a trail of gems drifts down from 12 o'clock like falling snow, settling onto a pavé-set mountain ridge along the lower edge. More stones line the bezel, bringing the total to 79 lab-grown diamonds and 0.66 carats, so every turn of your wrist makes the watch sparkle. It comes in Blue, Green, White Silver or White Gold, each with a matching strap.

Inside the 35mm tonneau case, a Japanese automatic movement keeps the hours and date, with luminous coating on the hands for use after dark. The 316L stainless steel sits beneath a sapphire crystal and is water resistant to 50 meters (5 ATM). The brand's patented tool-free system lets the fluoroelastomer band change in seconds. Quietly brilliant, from first glance to last.