The movement measures just 3.7mm thick thanks to its tungsten micro-rotor — a feature normally reserved for far more expensive watches. It also beats at 4 Hz yet maintains an impressive power reserve of 70 hours, all the while maintaining a stated near-COSC accuracy -3/+7 seconds per day. This is all very impressive stuff for an in-house movement at this price.
Yema has used this movement in several watches before, including in limited-edition Wristmasters, but the movements used were frankly pretty ugly with undecorated PVD-coated bridges. Here, the bridges have been decorated with Côtes de Genève in a sunray pattern that’s reminiscent of Omega’s “Geneva waves in arabesque” treatment. It’s gorgeous and looks quite luxurious, and is a far better fit for the micro-rotor.
Luxury for Less
In addition to the movement, the new Wristmaster has another trick up its sleeve — yet another feature borrowed from high-end watches. The butterfly clasp hides a micro-adjustment system that allows 1.5mm to 3mm of extra room in the bracelet.
It’s a feature first seen on the $20,000+ Vacheron Constantin Overseas but adapted earlier this year by Christopher Ward, a Yema competitor, for its own integrated sports watch, the Twelve. All three systems function very similarly: You simply pull and push the clasp to adjust it.