Patent ID: 7859949

Claim:
A timepiece comprising: a dial having a tens date display window for displaying the tens digit of the date, and a ones date display window for displaying the ones digit of the date; and a calendar mechanism having a tens indicator wheel to which a plurality of tens digit markers are disposed and a ones indicator wheel to which a plurality of ones digit markers are disposed, and which displays one of the plural tens digit markers disposed to the tens indicator wheel from the tens date display window, and displays one of the plural ones digit markers disposed to the ones indicator wheel from the ones date display window; the ones indicator wheel having a ones indicator plate on which the ones digit markers are disposed, and a ones indicator pinion affixed to the ones indicator plate; the tens indicator wheel having a tens indicator plate on which the tens digit markers are disposed, and a tens indicator pinion affixed to the tens indicator plate; the ones indicator pinion being a ring-shaped external tooth wheel having external teeth formed on the outside circumference surface; and the tens indicator pinion and a tens intermediate wheel that meshes with and transfers drive power to the tens indicator pinion being entirely disposed in the space on the inside circumference side of the ones indicator pinion.