Ref. 4958 The beauty and simplicity of this model make it one of the most sought-after of all the creations of Vacheron Constantin. It is quite similar to Patek Philippe Ref. 2526 which was launched in 1953 and like the Patek Philippe model it has a self-winding movement. Reference 4958 was produced in thirty-six examples in 1954 all water-resistant and in pink gold; thirty-four with Cal. 12’’’ 498 with subsidiary seconds; and two with Cal. 12’’’1071 with center seconds.