In addition to its tourbillon, the movement boasts an extra-large mainspring barrel, granting the watch an impressive 105-hour power reserve. The movement is also decidedly rugged, with 5,000-G shock resistance courtesy of a free-sprung balance and additional shock absorbers, plus 2,000-Gauss resistance to magnetic fields, which is quite high for a tourbillon movement. Coupled with the dive-ready 200m water resistance, this is looking like one of the most robust and resilient tourbillons on the market.

Yema’s industrial finishing of the manually wound CMM.31 movement matches the watch’s toolish vibe.
Yema

What’s more, the movement has a stated accuracy of -3/+7 seconds per day — which is near chronometer levels — and it sports some nice, industrial finishing. Visible behind a sapphire crystal on the caseback, the Cal. CMM.31 features dark, microblasted bridges with vertically brushed bevels and chamfered edges.

Pricing and availability

Yema is known as an affordable brand — you can pick up an automatic Superman Heritage diver starting at just $1,249. But although the new Superman Tourbillon is certainly affordable for what it is, it is by no means an inexpensive watch.

The Yema Superman Tourbillon CMM.31 Limited Edition is priced at a cool $13,000, making it one of, if not the, most expensive watches the French brand has ever produced. But when you consider that only a handful of other tourbillon-equipped dive watches boasting similar specs exist, and all have price tags several times higher than the Yema, then it becomes a lot more reasonable.