DA VINCI 3728-002 strap switch from metal links to santoni leather

Hi,

I have a Da Vinci 3728-002 with the metal links bracelet. I would like to switch it to a santoni leather strap but I don't know the size that I need for it. Any help much appreciated.

Details of lug and buckle dimensions can be found in the dealer workbooks, the following is from 2000.

Hope this helps.

Cheers from the cellar