Editorial
Two balance wheels, each inclined at 30 degrees to the dial plane, work as a pair to neutralize the positional errors that a single regulator cannot escape on its own. When gravity acts most strongly on one balance, the other is at its least-affected orientation, and the system averages the error across both. The result is a chronometric argument made in white gold and open-worked bridges.
Greubel Forsey was founded in 2004 by Robert Greubel and Stephen Forsey with a stated mission of researching mechanical precision, not simply making complicated watches. The Double Balancier arrived as a logical extension of that research program: instead of adding a tourbillon to fight gravity, they asked what two balances operating at complementary angles could achieve without the weight and complexity of a rotating cage. The 43.5mm white gold reference entered production in 2019 and represents the mature form of that idea.
Every component is finished to exhibition standard, with the movement architecture designed so the pair of oscillators is visible from the dial side. Greubel Forsey keeps annual production in the low hundreds across all references combined, which makes any single reference genuinely scarce.
White gold cases accumulate fine scratches faster than the brand's platinum references and polishing costs money and material. The 43.5mm diameter reads large on smaller wrists, so try it on before committing if you are below 17cm wrist circumference. The open-worked dial means dust ingress is a more visible problem than on a sealed dial watch; service intervals matter more here.
Secondary market pricing for Greubel Forsey is thin and illiquid, with wide bid-ask spreads, so expect to wait for the right buyer if you ever sell. Authentication is non-trivial given the complexity of the movement; buy only with full Greubel Forsey papers and ideally a factory service record.
