AT Worldtimer rubber strap length

Hi,

I hope everyone is having wonderful day. I am new to this forum. I have searched online for this and also reached out to a couple of Omega stores who gave me contradicting answers. So I thought I'd reach out here to you.
I am interested in buying an AT Worldtimer green rubber strap (220.32.43.22.10.001). I like my watches to fit snug on the wrist. When I have tried the watch I had to put it on the last strap hole to fit the way I like. I asked the AD if it comes in different/shorter length of strap (similar to other straps I bought from omega) and I got the following answer:

• not sure
• not with the watch you'll have to buy it separately
• yes "I think"

I couldn't find an option for 2 different lengths of strap for the world timer anywhere online. Anyone has any helpful information about this?

Thank you for your response.
On the rubber straps there are 2 numbers. One is a reference to lug width (20, 21 ..etc) and then there is 64. What does 64 refer to?
I noticed it in my moonwatch as well as almost any omega rubber strap watch.