I am interested in your opinions as to a possible next purchase.A few years ago I purchased a 5107 yg Patek.I am looking to step up to a higher model.Don't want to part with the 5107 as I love it"s classical yet modern look.Looking for some direction.I'm guilty of having that champagne taste with beer expenditure.Your comments would be sincerely appreciated. P.S.I too,love looking at the Lange movements.