Magnetic control and/or drive mechanism through a watch case

A horological assembly comprising:

• at least one watch and at least one adjustment tool arranged to enable a first internal mobile included in each said watch of said watchmaking assembly to be driven, without direct contact, throughout a case included in each said watch, in order to carry out an adjustment and/or a recharging with energy, each said adjustment tool including first magnetic areas arranged to cooperate in a complementary manner by attraction or repulsion with said first ferromagnetic internal mobile or including second magnetic areas,
• wherein said first internal mobile is pivotably movable about a first axis, and is also movable axially according to the direction of said first axis against an elastic return means fastened to an element of said case, between an active position in which said adjustment tool is positioned against said watch or in the vicinity of said watch so as to attract, or respectively push back, said first internal mobile towards an end-of-travel surface which said elastic return means or said element or said case includes, in an engaged position between a first drive element secured to said first internal mobile or formed by said first internal mobile and a second internal mobile internal to said case, and an inactive position in the absence of said adjustment tool, in which inactive position said elastic return means keeps said first drive element disengaged from said second internal mobile, said elastic return means being arranged to supply on its own the desired torque to ensure adjustment.