Hello.
I've got Tag Link Automatic Chronograph 7750.
When I received them (2 months ago) they where loosing about 30 sec's a day. I've been adjusting them for 2 weeks and managed to let them loose about 2 sec's every 24 hours. When I wear them they are going fast, when they lay on the table they're going slow. So they loose 30-50 sec's a months. I found that A7750 is good enough and reliable enough for replica.