The moonwatch is the speedmaster professional with a lemania manual wind movement and the case its 42mm.
The speedmaster reduced ( the one you post above) has an automatic movement (as it says on the dial) and its smaller that the moonwatch (39mm), and price-wise it cost less.
You can easily tell them apart by the dial.
Have a read hear
http://www.fratellowatches.com/spee...ed-versus-speedmaster-professional-moonwatch/Click to expand...