All the pictured straps are from ABP's specially-tanned alligator offerings. From L to R in the pic, I believe the leathers are acz2, acz3 and for the L1 MP acz4. The acz4 has shades of black and grey, and together with the grey contrast stitch complements the rhodium dial and MP quite nicely.
You may want to reach out to Sonia at ABP, and together with the pic she may be able to pull up details of the order. abp-paris@orange.fr