Patent ID: 9547278
Date: 2017-01-17
CPC Classifications: G04B

Claim:
1. A balance with inertia adjustment, for timepieces, comprising: a hub defining a pivot axis of said balance, a rim, a web extending between a lower plane and an upper plane on either side of a median plane, said web including at least one arm connecting said rim to said hub, said at least one arm including a housing configured to receive and hold in place at least one inertia block, wherein said at least one inertia block has a front face and a rear face and is integrated in said arm of said balance, so that said front face and rear face are substantially in said upper plane and said lower plane, wherein said arm includes an elastic portion that is a separate piece from the at least one inertia block, and wherein the elastic portion clamps the at least one inertia block in the housing.