Patek Philippe 5070G white dial, 5170G white dial or 5172G blue dial.
The former (Lemania Caliber 2310 CH27-70) is available in overseas as pre-owned in various conditions.
The latter 2 (Patek Philippe Caliber CH 29-535 PS) are still readily available as new stock in local AD.
Which one is more desirable, & how safe is it to get from overseas seller?