Greubel Forsey Balancier QM

Balancier QM is a wristwatch by Greubel Forsey.

With this model from 2026, the brand presents the first timepiece to meet its “Qualité Musée” standard. This designation refers to a self-imposed standard of hand-finishing that meets the highest demands. It is driven by a dedicated research department within the EWT Laboratory (Experimental Watch Technology).

Key features of the watch: manual winding, display of hours, minutes, and small seconds, hidden power reserve, 39.60 mm white gold case. Limited to 33 pieces.

Let’s take, for example, the bridge that supports the balance wheel—on these few millimeters of steel, seven hand-finishing techniques converge. The arm is flawlessly polished to a high gloss across its curved profile. The flat side at the jewel is polished to a black finish. One surface features a dotted pattern, while the recess has a circular grain. The flanks are polished by hand along the visible contour, and the remaining areas are finished with straight-line strokes. And every bevel and chamfer is finally polished by hand, with the chamfered edges being particularly wide at 0.40 mm.

That’s seven steps for a bridge. Now multiply that by 298 components.

The escapement is refined in places that hardly anyone ever notices. The two-stage escapement wheel is beveled and polished on both sides—the hidden side just as carefully as the visible one. The anchor jewels are convex rather than flat, so that light can travel along the ruby instead of simply being reflected off a single edge.

At the heart of the watch beats an in-house balance wheel with variable moment of inertia, measuring 12.60 mm and featuring six gold center screws—the regulating organ to which the timepiece owes its name. All of this is, of course, not limited to a single watch: The new geometry of the escape wheel and the convex anchor jewels are being gradually introduced across the entire collection, as are the wide beveled edges and polished flanks, wherever they make aesthetic sense.Greubel Forsey