This 2 prong Horotec watch case opener is constructed with the usual outstanding quality you expect from Horotec.
The removable jaws can open from 14 to 61mm.
The two handles of the case wrench gives you more leverage on those hard to open backs.
This Horotec screw back case opener comes with 59.7323E Horotec square jaw pins.
Works with other shape pins too:
#59.7323A Pin For round holes
#59.7323B Pin For flat edges
#59.7323C Pin For square holes
#59.7323D Pin For fluted edges