Patek Philippe Calatrava Reference 3720J
Record status
Individual type · partial
Period
circa 1985
Maker / issuer
Patek PhilippeThis Patek Philippe Calatrava, reference 3720J, is a manually wound wristwatch produced circa 1985. The timepiece features a 32 mm case constructed from 18k yellow gold, characterized by a flat, thin bezel and a screw-down case back.
The dial is finished in a white tone, incorporating black printed Roman numeral hour markers and non-luminous stick-style hands. Internally, the watch is driven by the ultra-thin, hand-wound calibre 177 movement. The piece is presently mounted on a leather strap manufactured by Bulang & Sons. The auction description reports that the watch has undergone a service by their watchmaker. This reference is identified by the movement serial number 136xxxx and a case number recorded as 279xxxx.
It represents an iteration of the long-standing Calatrava model line from the mid-1980s period.
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
- Dial
- White
- Type
- Manual-wind wristwatch
- Maker
- Patek Philippe
- Dating
- circa 1985
- Movement
- Calibre 177
- Reference
- 3720J
- Case Serial
- 279xxxx
- Case Material
- 18k yellow gold
- Movement Serial
- 136xxxx
- Maker / attribution
- Patek Philippe
Design
- Case and Dial
- The watch is housed in a 32 mm case crafted from 18k yellow gold. The exterior architecture of the timepiece includes a flat, thin bezel paired with a screw-down case back, intended to secure the internal components. The dial surface provides a white background intended to contrast with the black printed Roman numeral hour markers. Time is indicated via two non-luminous stick-style hands, which correspond to the hour and minute functions. The dial includes the text 'PATEK PHILIPPE GENÈVE' below the twelve o'clock position and 'SWISS' at the bottom of the dial surface.
- Visible features
- • Case and bezel are 18k yellow gold • Dial features non-lumed stick hands • Black Roman numerals are printed on the dial • Leather strap has white contrast stitching
- Movement and Function
- The watch is powered by the calibre 177 movement. This is a hand-wound, ultra-thin mechanism. The movement is specified as the primary timekeeping component for this reference 3720J model. The documentation confirms the movement serial number as 136xxxx. The watch has been subjected to a service process by the vendor's internal watchmaker to prepare it for distribution.
- Identification and Provenance
- This object is catalogued as a mid-1980s Patek Philippe Calatrava, bearing the reference number 3720J. The specific identification numbers associated with this individual watch include a case number 279xxxx and a movement serial number 136xxxx, which together suggest a production date of approximately 1985. The watch is presently configured with a Bulang & Sons leather strap.
Identification
- Reference
- 3720J
- Serial number
- 279xxxx
- 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: Movement serial number listed as 279xxxx or 136xxxx requires clarification in source
- Research required: Discolouration or staining is visible on the hands in photos