Patek Philippe Calatrava Anti-Magnetic Ref. 3418
Record status
Individual type · partial
Period
1958-1962 (Production dates provided in source for Ref. 3418; Record states 1957, which is only the manufacturing date of this specific unit per Archive Extract).
Maker / issuer
Patek PhilippeThis 1957 Patek Philippe Calatrava Anti-Magnetic wristwatch, reference 3418, features a silver dial co-signed by the retailer Beyer and a stainless steel, four-piece waterproof case.
The case, designed by Jean Vallon, supports an integrated stainless steel 'Milanese-style' mesh bracelet manufactured by Cornu & Cie, as well as convertible strap bars for standard leather straps. The watch includes an Extract from the Archives confirming the 1957 manufacturing date and 1959 sale date. The provenance is associated with the Zurich retailer Beyer.
Evidence at a glance
- Linked sources
- 1
- Photograph views
- 1
- Catalogue references
- 0
Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.
Technical characteristics
- Type
- Anti-magnetic wristwatch
- Movement
- 12-400 AM
- Retailer
- Beyer
- Case Maker
- Jean Vallon
- Bracelet Maker
- Cornu & Cie
- Place recorded
- Switzerland
- Manufacturing Date
- 1957
- Maker / attribution
- Patek Philippe
Design
- Visible features
- • Silver dial features recessed, engraved hour markers • Co-signature 'BEYER' located above the running seconds sub-dial • Original crown signed with Patek Philippe Calatrava cross • Integrated Milanese-style mesh bracelet with evidence of minor wear along the right edge
- Dial and Retailer Signature
- The silver dial is distinguished by recessed, engraved hour markers which are noted to provide depth. The dial serves as a point of provenance, bearing the signature of the Zurich-based retailer Beyer positioned above the running seconds sub-dial at the six o'clock position. The dial is described as being in well-preserved condition. The stainless steel hands show indications of age-related oxidation, though they are reported to remain in excellent condition.
- Case and Bracelet Construction
- The watch features a four-piece waterproof stainless steel case engineered by Jean Vallon. This construction design allows for a lugless aesthetic that facilitates the use of an integrated mesh bracelet or a leather strap via provided convertible strap bars. The caseback is a screw-down type and features an inventory number engraved along the edge. Accompanying the watch is a stainless steel 'Milanese-style' mesh bracelet manufactured by Cornu & Cie. The auction description reports that the bracelet has been sized to fit wrists between 5.5 and 7.25 inches. The bracelet is noted as fully operational, though it displays characteristics of light use, including minor warping and edge wear.
- Movement and Technical Engineering
- This movement was specifically engineered to operate in environments with constant exposure to magnetic fields, utilizing non-magnetic metals including gold or beryllium for the lever escapement. The caliber 12-400 AM integrates a Nivarox hairspring to mitigate the influence of magnetic interference up to 450 oersteds. While the auction description reports that the watch is operating, the service history remains unknown.
Identification
- Reference
- 3418
- Serial number
- 26XXXXX / 72XXXX
- Source note
- Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.
Catalogue references
No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.
Research required
- Research required: Service history is unknown
- Research required: Only about 40 examples have been confirmed to exist, suggesting rarity but requiring further verification of current population