templetowers
3315
Hi Dazdance. I don't think there are any differences since its introduction apart from the movement that has seen quite a lot (Free Sprung Balance, Silicon Hairspring ,
Jul 29, 2017,04:03 AM
and Anchor, Elinflex mainspring, Copper Berylium Wheels etc..). The 5817 only comes in the 39mm size. Other models like the 5827 or 5857 are 42mm. Best wishes Will.