A mechanism for indication of the lunar phases, in particular for a mechanical watch, including a moon disk and a dial having a substantially semi-circular aperture. The doped region has implanted alloying elements that block grain boundaries and reduce stress and electro migration. The measurement unit measures a resonance frequency of the oscillating mirror deflector. Maintaining the candidate connections enables mobile devices, for example, to be resilient to and tolerant of topology changes affecting the active connection. The messaging transponder receives the first signal and generates and sends the receptor a second signal at least partially based thereon.