Calendar display wheel guard construction of timepiece

In a calendar timepiece;

• a dial plate;
• a calendar display wheel;
• a back plate, wherein said dial plate, said calendar display wheel and said back plate each have a central opening therethrough and are positioned facing each other in the named order with their central openings aligned;
• and a calendar display wheel guard mounted on said back plate for rotatably mounting said calendar display wheel and for spacing said dial plate from said calendar display wheel, said calendar display wheel guard comprising a body having a bore therethrough opening at a pair of opposite ends thereof, a first end portion of said calendar display wheel guard having a maximum diameter of said wheel guard and having a major surface defining a first end face of said wheel guard and a second surface opposite the first end face of said wheel guard, said wheel guard positioned with said first end face abutting said dial plate and the bore through said wheel guard aligned with the central opening through said dial plate and said calendar display wheel abutting the second surface of said first end portion of said wheel guard whereby said dial plate and said calendar display wheel are maintained spaced by said first end portion of said wheel guard, said calendar display wheel guard further comprising a second end portion having means for fastening said second end portion to said back plate by engaging said back plate with the opening of the bore through said wheel guard aligned with the central opening through said back plate, said wheel guard having an intermediate portion between said first and second end portions which extends through the central opening through said calendar display wheel, and said back plate has a step portion dimensioned to extend into the central opening through said calendar display wheel and over the intermediate portion of said wheel guard for defining a bearing surface with said calendar display wheel seated directly on said bearing surface for rotation.