9 changes!
1. Name Change of course! It's called the PuristPro All-Black Rescue Rescue instead of St.Gallen PVD Disinfectable Rescue.
2. The dial at 6 o'clock has been changed from the original RESCUE to PuristPro.
3. At 3 and 9 o'clock the 15 Pulsations and 5 Respirations were originally in RED, but now in the PuristPro model, it is in BLACK.
4. The original dial at the2-3 o'clock and 9-11 o'clock are green and yellow respectively, however, the PuristPro model are both GREEN in colour.
5. The original dial has numbers below the hour markers but the PuristPro model does not.
6.The original main second hand tip is red in colour, however, the PuristPro model has the whole main second hand in red.
7. At the 12 o'clock, there is no St Gallen written on the PurstPro model.
8. The bezel is printed differntly. E.g, at the 9 o'clock on the original model, it says: -20, however, on the PuristPro model, it says 20-.
9. The case of the PuristPro has PuristPro engraved on it instead of the original Disinfectable.
These are what i noticed, but i can't really comment on other things which are not obvious, e.g, the movement and strap etc etc... haha..