Arnold & Son TEC1, red gold 5N 45mm case, anthracite dial, self-winding, exclusive Arnold & Son mechanical movement calibre A&S8305, chronograph tourbillon, power reserve 55h, Water Resistant 30m, See-through case back.
Take a piece of non-stretchable string, ribbon, thread, or a thin strip of paper. Wrap it comfortably around your ring finger, close to the knuckle.