The 2915 (Speemaster) with cal 321 has the widest holes of all of them with the hour 1,90 mm and the minute 1,05mm. The 2914 (Railmaster) with cal. 284 is the smaller with 1,70 mm and 0,95 mm. The 2913 (Seamaster) with cal 501 is the smallest with 1,50 mm and 0,80mm. Finally there is the rancheros, but it is outside the famous triology. However it has the smalest holes with 1,40 mm and 0,75mm.
Here a comparison picture. The hand on the right is a 2914 hand, the two others are 2915 hands. You can notice without measuring, that the 2914 is thinner and has a smaller hole. A 2913 is not in my collection (unfortunately), so I have no pics. But it is the smalest.
I had a feeling of deja vu, after posting last night. And found an old thread
@BASE1000 we did discuss this watch and the very same hand issues before, just back in may. Are we getting old? 🤦
But this time we (I) missed the point that there is not enough metal on the 2913 hand to make the hole bigger to fit the 2915 hour wheel. @watchyouwant however had a fine answer. One just shave metal of the hour wheel. Oh well.
And yes, the OP watch must be the 2915-2 from the Philips Hong Kong auction in may, that sold for around $56k. Besides the hands, it have the same nicks/scratches around/above the "base" lettering for instance and same 15500x serial (to low for a 2915-2 btw!??).
Won't comment on the price before/after 🙄
I had a feeling of deja vu, after posting last night. And found an old thread
@BASE1000 we did discuss this watch and the very same hand issues before, just back in may. Are we getting old? 🤦
But this time we (I) missed the point that there is not enough metal on the 2913 hand to make the hole bigger to fit the 2915 hour wheel. @watchyouwant however had a fine answer. One just shave metal of the hour wheel. Oh well.
If I understand correctly, all the discussions so far are about the BA hour and chrono second hands, but it appears the main minute hand is also from a 2913 as well. This means the cannon pinion has also been shaved down to fit the minute hand, along with the mod on the hour wheel's tube. Not as big problem as finding the correct hands, but correct hands (if found) would not fit as is on this watch.