Cosmograph Daytona

The picture shows the Rolex Cosmograph Daytona Ref. 116598 RBR. Below is an introduction to this watch:
I. Brand and Series Background
Brand
Rolex is a world-renowned luxury watch brand renowned for its precision, durability, and exceptional quality. It enjoys exceptional brand value and market recognition, boasting numerous patents and innovations in the watchmaking industry, making it a representative brand of high-end watchmaking.
Series
The Cosmograph Daytona series is Rolex’s classic chronograph series. Originally designed for motorsports timing, the “Cosmograph” designates its speed-measuring function, while the “Daytona” name refers to the Daytona International Speedway in Florida, USA, once a major Rolex-sponsored racing venue. The Daytona series, with its precise timing, classic design, and rarity, has become a coveted model for many watch enthusiasts. Demand often exceeds supply, and prices are high in the pre-owned market.
II. Design
​Case and Strap
​The case and strap of this watch are crafted from 18K rose gold. 18K rose gold has a unique color, exhibiting a warm and luxurious hue. It is not only beautiful but also corrosion-resistant and durable. The case diameter is typically 40mm, a size that ensures clear readability while accommodating most wrist sizes, offering both aesthetics and practicality.
​The strap features the classic Oyster bracelet design, a signature Rolex design. Composed of multiple links, it offers a sturdy, comfortable fit that molds perfectly to the wrist. The connection between the bracelet and the case is meticulously crafted, with smooth lines that showcase Rolex’s exquisite watchmaking craftsmanship.
​Dial
​The dial is a soft, textured pale rose gold, embodying an elegant and luxurious feel. The dial features three subdials, each displaying different chronograph functions: for example, one for hours, one for minutes, and another for seconds (the specific function depends on the watch’s chronograph system). The subdials complement the main dial, enriching its visual appeal while ensuring clear reading of the time.

The hour markers and hands on the dial feature Rolex’s signature Chromalight luminescent material. This material emits a long-lasting blue or green glow in the dark, making it easy to read in low-light conditions. The shapes of the hour markers and hands have been carefully considered, ensuring both aesthetic appeal and legibility.

Bezel

The bezel is generously encrusted with diamonds, each meticulously cut to radiate a dazzling brilliance. This diamond bezel is more than just a decorative element; it embodies the watch’s luxurious character and value. The Daytona bezel often features a tachymeter scale. When measuring speed, such as in racing, the scale and chronograph hand can be used to calculate average speed. This design is a key feature of the Daytona collection.

Movement and Functions

Movement

This watch is equipped with a self-winding mechanical movement developed in-house by Rolex. Rolex mechanical movements are renowned for their exceptional quality and precision, utilizing advanced watchmaking techniques and high-quality materials. The automatic movement is wound by the wearer’s arm movement, eliminating the need for frequent manual winding (although manual winding is still possible for additional power), making it convenient and practical.

The movement features a high vibration frequency, typically 28,800 vibrations per hour (4Hz), which contributes to enhanced timing accuracy. Furthermore, it is equipped with advanced components such as Rolex’s Parachrom hairspring, which is anti-magnetic, shock-resistant, and temperature-stable, effectively minimizing the effects of external factors on the movement’s performance and ensuring stable operation in all environments.

Functions

As a chronograph, it features precise timing functions. The crown and pushers on the bezel allow the chronograph to be started, stopped, and reset. The chronograph function can be used not only to measure time intervals but also, in some cases, to measure speed (in conjunction with the tachymeter scale on the bezel), distance, and other parameters, meeting the needs of various users, such as those involved in sports and event observation. In addition, the watch also has a date display function. The date display window is usually located at 3 o’clock on the dial. The date display is clear and easy to read. It may also be equipped with Rolex’s Paraflex shock absorber and other technologies to improve the stability of the movement when it is subjected to vibration, further ensuring the accuracy of the timing function and the durability of the movement.