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Rolex Day-Date Reference 1803, 1970

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

1970

Maker / issuer

Rolex

This Rolex Day-Date, reference 1803, is a wristwatch produced in 18k yellow gold, featuring a 36 mm case. The watch is equipped with a champagne-coloured, pie-pan style dial, which incorporates black baton hour markers and fine Arabic numerals on the minute track.

It displays the date in a window at the 3 o'clock position, magnified by a crystal cyclops, and the day of the week in a full window at the 12 o'clock position. The day-disc is printed in English. Powering the watch is the self-winding calibre 1556 movement, which utilizes a non-quickset mechanism for adjusting the day and date. The watch is fitted with a leather strap. According to the provided serial number 252xxxx, the piece dates to 1970.

The movement has undergone servicing by the seller.

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

Date
1970
Type
Day-Date wristwatch
Movement
Calibre 1556
Reference
1803
Dial Style
Champagne pie-pan
Case Material
18k yellow gold
Serial Number
252xxxx
Place recorded
Switzerland
Day Disc Language
English
Maker / attribution
Rolex

Design

Visible features
• Fluted 18k yellow gold bezel • Plexi crystal with cyclops lens • Pie-pan dial with soleil finish • English language day display
Movement and Mechanism
The watch is powered by the Rolex calibre 1556. This is a self-winding mechanical movement that provides the signature day and date function associated with the Day-Date model. The calibre 1556 uses a non-quickset, or 'slow-set', mechanism, meaning the date and day cannot be advanced independently through the crown in the same manner as later quickset movements. The seller reports that the movement has been fully serviced.
Case and Dial Construction
The timepiece is housed in a 36 mm case manufactured from 18k yellow gold. The bezel features a characteristic fluted design. A plexi crystal is installed, which incorporates the standard magnifying cyclops lens over the date aperture located at the 3 o'clock position. The dial displays a champagne colour with a soleil finish and a pie-pan configuration. It is distinguished by the application of black baton hour markers and fine Arabic numerals located on the peripheral minute track. The day of the week is shown in a full aperture at 12 o'clock, with the disc printed in English.
Identification and Configuration
The watch is identified by the reference number 1803. The serial number provided is 252xxxx, which associates the production year of the watch with 1970. The watch is presented on an aftermarket leather strap produced by Bulang and Sons. No original bracelet is mentioned or included with this specific configuration.

Identification

Reference
1803
Serial number
252xxxx
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: Mechanical warranty coverage is limited to one year
  • Research required: The strap is a third-party Bulang and Sons aftermarket component
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