As DC says it’s the 11630 T model.
The catalogue picture shows the MH and P models and yours with the Tachymetre bezel is mentioned but not shown.
It looks like your hours and minutes may have faded significantly and as David mentions above they should be orange, as should the seconds hand. The seconds hand seems to be completely white, so maybe the photo just doesn’t capture any last hint of the colour, or it’s been replaced, as could the hour and minutes. Looking at the dial markers which should have orange lines in them it is very possible that all the orange is simply faded.
If you have someone remove the bracelet you will see between the lugs a model number on one side and a serial number on the other.
The bracelet appears to be original on first glance and is a beads of rice (or grains of rice) and is highly desirable by itself.
Get it out and start wearing it I say Tom
😎
Here’s my own 11630 with the Minute Hour bezel making it the MH model, which you can see has some fading of the markers and hands.