Managed to pick up the rubber strap from a BB54 & t-fit clasp OEM & brand new for eBay (for a great price compared to RRP).
Went for a trial fit tonight (as this will be a birthday present next month).
Annoyingly the spring bars I have from both the bracelet and nato are too thick. I presume I need BB54 only ones.
I do have a box of cheap spring bars with a strap changing kit but none were the correct 20mm size (plus I didn't feel like cheap ones would be ideal).
Anyone know of the correct ones? Guess a call to the AD tomorrow.
I do also like the look.
So it seems the BB54 uses 1.5mm spring bars, does anyone know if they'll only be OEM or an alternative that can be used, similar to the standard ones on a Tudor?