Omega speedmaster

[Iceblue]

Have owned a Omega Speedmaster from new about 6 years its the latest model (master chronometer) its time keeping was excellent for first 2/3 years but since as been losing about 7 secs daily, don't want it servicing as yet as I don't wear it everyday was just wondering if its possible to just have it regulated for better accuracy, or is it acceptable? believe they should be within 0 to +5