How to open the case of Monta Atlas GMT

nawirby

I had Monta Atlas GMT for almost three months now. At the first month it was getting -2 seconds a day. Now it is getting -13 seconds a day. I dont like it, and I am going to regulate it myself. How to open the watch case? Any tools suggestion? Thank in advance.

#monta #regulate #accuracy
Reply
AllTheWatches
·

The folks at Monta are super helpful, is the watch still under warranty? My guess is the watch opens the similiar to Rolex, IE, use the Bergen 8008. That said, it’s worth asking them. I have not popped my case back off.

Image
Urashiman
·

Try demagnetising first. In my experience that is in most cases the reason behind sudden deviation.

nawirby
·
Urashiman

Try demagnetising first. In my experience that is in most cases the reason behind sudden deviation.

Usually when the watch get magnetize it run faster. Maybe it was magnetize in the delivery. Now it is actual speed.

nawirby
·
AllTheWatches

The folks at Monta are super helpful, is the watch still under warranty? My guess is the watch opens the similiar to Rolex, IE, use the Bergen 8008. That said, it’s worth asking them. I have not popped my case back off.

Image

I have Bergen 8008, but usually i use it after using the 3-prong case opener. It is very tight to try open with Bergen 8008. Anyone think i can use Brietling tool? I will try to contact Monta. It is still warranty, but i am not in USA.