Speedmaster losing time?

good afternoon, newbie here...
my Broad arrow is now 6 years old and whilst the Omega Service interval on the co-axial movement
can be up to 10 years it seems my watch has recently started losing 3 mins a week (watch worn day and night)
do you think this is within the tolerances for a watch worn every day?

also what are your experiences of the co-axial...any advise as to when to service it?
my last speedmaster was pre co-axial so a service every 3 years used to suffice back then....

many thanks

thanks for the reply Archer, as I suspected really. I shall get it sent away to Omega