Skip to content

Patek Philippe Ref. 3700/1A Nautilus Jumbo Wristwatch

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

1977

Maker / issuer

Patek Philippe

This Patek Philippe Nautilus Jumbo reference 3700/1A is a stainless steel automatic wristwatch manufactured in 1977. According to Phillips, the watch measures 42 mm in diameter and is paired with an integrated stainless steel bracelet and deployant clasp.

It is powered by the 36-jewel automatic caliber 28-255C, featuring hours, minutes, and a date display at the 3 o'clock position. The source notes that the timepiece was serviced by Patek Philippe in 2021, at which time it was fitted with a new old stock dial.

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
Automatic wristwatch
Calibre
Automatic, cal. 28-255C, 36 jewels
Reference
3700/1A
Dimensions
42mm Diameter
Case Number
532’923
Case Material
Stainless steel
Place recorded
Switzerland
Movement Number
1’303’790
Maker / attribution
Patek Philippe
Dial Service History
Fitted with a new old stock dial during 2021 service

Design

Visible features
• Horizontally embossed dark dial with baton hour markers and baton hands. • Bezel features vertical satin-brushed finishing with polished bevelled edges. • Date window displays the numeral '3' at the 3 o'clock position. • Integrated stainless steel bracelet with central polished connecting elements and brushed links.
Identity and Provenance
This Patek Philippe Nautilus Jumbo, reference 3700/1A, is reported as having been produced in 1977. The watch is accompanied by an extract from the archives, which provides confirmation of its 1977 production and its sale on August 30, 1977. The case measures 42 mm in diameter.
Mechanism and Service History
The watch is powered by the automatic caliber 28-255C, a 36-jewel movement. The watch was serviced by Patek Philippe in 2021, at which time a new old stock dial was installed.
Construction and Aesthetic Details
The timepiece features an integrated stainless steel bracelet and a deployant clasp. The bezel is finished with vertical satin-brushing and polished bevelled edges. The dial displays a horizontal embossed pattern with baton hour markers and baton hands. A date aperture is located at the 3 o'clock position.

Identification

Reference
3700/1A
Serial number
1’303’790
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: Source notes the dial is a service replacement ('new old stock dial') installed in 2021 rather than the 1977 original.
  • Research required: Case back and movement interior are not visible in the photograph.
Can you source one of these? Submit a reference