Lug with Carrera 1887

[Uhrlaub]

Hello,

could someone please Tell me the lug with and also the the with of the butterfly clasp ?
Need it to buy a third Party Strap. Is it 22/18?

https://puretime.io/carrera-calibre...-gray-dial-on-gray-leather-strap-cal1887.html

Thanks in advance!

 

[Uhrlaub]

Width of course... Autocorrection