Reverso Grande Taille Sun Moon 270.340.637B — White Gold

Identifying details

• Day/night indication

  Shows whether the time displayed is day or night.

• Power reserve indicatorPower reserve indicatorA display showing the mainspring’s winding state and the corresponding remaining running time.

  Display of the remaining power reserve.

• Moon phaseMoon-phase displayAn astronomical indication showing the Moon’s changing appearance through its cycle, averaging about 29.5 days. Display accuracy and the interval between corrections depend on the mechanism; a maker’s specification for one calibre should not be applied to every moon-phase watch.