On this site I deal with seven case references of steel cased Speedmasters .
Almost each reference is subtly different from its neighbor, and that needs to be checked in the details pages, here.
All but one have many sub references.
There are two limited editions – the 1975 Soyuz with its 5.5mm pushers, and the 1969 18kt gold. Both, literally, worth more than their weight in gold. These are included in the right hand column.
While many people are happy with one watch, others collect more. Some collectors, if looking for a complete set, might choose just one of each reference, so seven watches would cover each of the references – without looking at the different date backs or executions.
However a “complete set” might be all 38 watches in the list above.
There are also some special dials seen. These are the grey or blue metallic luster, (known as “Solei Dials) and grey matte dials. These special dials have started to get extracts from the Museum, and perhaps this is a benefit of the upgraded Museum archive system.
There have also been some prototype dials appearing, but these are not confirmed by the museum.