This steampunk watch might not be really steam-powered, but it does look very steampunkish!

For you, we humbly offer this stunning apparatus of rare mid-Victorian invention. It measures the decay of time using Carnot’s second law of thermodynamics, and sports a handsome “Galvanic Scale” dial with a hinged magnetic-fastening pressure cover hatch. The entire apparatus is hinged to a pewter bracelet adorned with copper coils and plastic pipes, with an adjustable steel fastener for a bespoke fit. And should you find the occasion to offer the Steam-Powered Entropy Calibrator Watch as a gift, you’ll find it most afternoonified upon a hexagonal pillow inside a black and gold gift box of the same shape.

[Steam-Powered Entropy Calibrator Watch]