Rolex Oyster Perpetual Cosmograph Daytona Ref. 116520

Technical characteristics

Type

Chronograph

Maker

Rolex

Model

Oyster Perpetual Cosmograph Daytona

Diameter

40 mm

Movement

Caliber 4130

Reference

116520

Case Material

Stainless steel

Serial Number

F 248 871

Place recorded

Switzerland

Maker / attribution

Rolex

Design

Visible features

• Black dial with three subsidiary chronograph registers • Tachymetric scale engraved on the steel bezel • Oyster-style stainless steel bracelet with deployant clasp • Rolex crown logo positioned at the 12 o'clock marker

Condition and Grading

The auction description provides a multi-part grading assessment for the watch. The overall grading is designated as Grade AAA. Component-specific evaluations categorize the case condition as 3 (Good) and the movement as 2 (which the source designates in the context of the grading system). The dial is evaluated with a grade of 2-01 (Very good). The object also retains its original hands, as noted in the provided documentation.

Case and Dial Construction

The watch features a tonneau-shaped stainless steel case designed for water resistance, incorporating a screwed case-back. The fixed bezel is composed of stainless steel and is engraved with a tachometric scale, calibrated for reading speeds up to 400 units per hour. The black dial contains radial hour markers and is fitted with a central chronograph hand alongside three subsidiary dials. These registers facilitate the 12-hour and 30-minute recording functions, with the constant seconds sub-dial located at the 9 o'clock position. The dial displays the Rolex branding and standard designations including "Oyster Perpetual", "Superlative Chronometer Officially Certified", "Cosmograph", and "Daytona". The chronograph mechanism is controlled via two round, screwed-down push-pieces located on the side of the case flanking the winding crown. The watch is presented on a stainless steel Oyster bracelet featuring a deployant clasp mechanism.

Movement and Functionality

The timepiece is powered by the Rolex caliber 4130 self-winding movement. This movement is designed with a chronograph function capable of tracking intervals down to 1/10th of a second. The movement includes a half-instantaneous 30-minute recorder at the 3 o'clock position and a 12-hour recorder at the 9 o'clock position. In addition to its chronograph utility, the movement is officially certified as a Superlative Chronometer. It is adjusted by the manufacturer for operation across five positions and varying temperatures to maintain timing precision.

Identification

Reference

116520

Serial number

F 248 871

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.