Rolex [Caliber 730] - Fourth Wheel - 4207

The base item Rolex [Caliber 730] - Fourth Wheel - 4207 carries the parts list number 4207 specifically for spare parts search for Caliber 730.

The parts list clearly assigns this part to the caliber. The technical reference image serves for verifiable identification during overhaul, repair, and spare parts search.

For inspection, Caliber 730, part number 4207, and the designation Fourth Wheel are checked together.

Later variants show the available original part, the documented condition, and the actual scope of delivery.