1965 18K white gold Patek Philippe ref 3411, center seconds, 27SC caliber $15,500.00 Quantity 1965 18K white gold Patek Philippe ref 3411, center seconds, 27SC caliber quantity Add to cart Inquire Inquire Form "*" indicates required fields Name* First Last Email* Enter Email Confirm Email PhoneQuestion* Categories: Patek Philippe, Watches.