I guess depending on how comfortable you are with the size of the chosen watch, you really can't go wrong with either the larger Autavia or the venerable and 'dressier' Carrera. I love the dramatic presence of Autavias due to their formidable larger size; very masculine and very business-like! Although the Carreras are smaller, the clean, crisp design of the earlier Carreras as indicated by Jeff's photo fits right at home at any vintage 911 driver's wrist perfectly, not to mention the renowned name commonly shared by these two lengendary products! They are both winners in my book: Heuer and Porsche, that is!