Girard Perregaux

What after market straps would you recommend for the Sea Hawk? Thanks!

and is it possible to use straight spring bars with a GP? Thanks!

I only have a 49910, but I have to assume it has the same strap size, although I'm not 100% sure about the 40mm version. Standard Strap is 21mm with 19mm buckle and curved at the lugs. I don't think a straight strap will fit very well due to the placement... 

The lug width of the Ref 4992 is 20mm. But you could easily fit a 21mm strap. Curved spring bars depends on whether you want a strait or curved end on the strap. It looks good on curved end. The usual after market companies like ABP and CF will manufactur...