If I am not mistaken, there more variation of the 42mm Speedmaster Professional.
1) Hexalite, S/S bracelet, non-transparent caseback (Model: 311.30.42.30.01.005)
2a) Hexalite, Leather strap, transparent caseback (Model: 311.33.42.30.01.002)
2b) Hexalite, Leather strap, non-transparent caseback (Model: 311.33.42.30.01.001)
3a) Saphire, S/S bracelet, transparent caseback (Model: 311.30.42.30.01.006)
3b) Saphire, S/S bracelet, non-transparent caseback (Model: 311.30.42.30.01.005)
All of the above model is package with special boxes and 2 extra Nato straps. Anyone interested can definitely find the above models from the Omega website
Here is the picture of the Hexalite, Leather Strap with transparent caseback from the seller that has sold this pristine piece to someone that has contacted the seller before me.


