The present watch, reference 2570/1, was manufactured in 1958 - the very year that the model was introduced. Cased in yellow and pink gold, the reference 2570/1 was a stark change from its "workhorse" peer, reference 3417, which was available in stainless steel only. Reference 2570/1 is characterized by its downturned lugs, which hug the wrist incredibly well. It provided a luxurious update to its stainless steel peer. Consequently, very few examples were produced. The present watch is only one of 14 known first series examples.

A "Tool Watch" in many senses, anti-magnetic watches were made for scientists and technicians who worked near magnetic fields. The inner iron cap prevents the electromagnetic waves from altering the time-keeping accuracy of the watch. The watch is furthermore waterproof, allowing professionals to wear the watch under many different circumstances.

Featuring a dial with baton markers and "9-12-3" yellow gold Arabic numerals, this example has been preserved in excellent condition. Still retaining its anti-magnetic cap, it bears the case number of the watch, confirming its originality. Many existing examples have lost their inner soft-iron cap over the years. It furthermore features two sharp hallmarks to either side of the lugs, and crisp edges throughout.