Rolex Daytona — DIW Customized Edition (40 mm)
A bold reinterpretation of an icon, this Rolex Daytona (40 mm) customized by Designa Individual Watches (DIW) pairs Rolex’s legendary chronograph performance with unique aftermarket styling. Built around Rolex’s robust in-house Caliber 4130, this DIW-modified Daytona keeps the original engineering and precision while introducing distinctive visual and material upgrades that make it a standout on the wrist.
Key Specifications
•Model: Rolex Daytona — DIW modified edition
•Case Diameter: 40 mm — classic Daytona proportions for balanced wrist presence
•Movement: Rolex Caliber 4130 — integrated automatic chronograph movement with vertical clutch and Parachrom hairspring
•Power Reserve: ~48 hours
•Chronograph: Central chronograph seconds, 30-minute counter, 12-hour counter; flyback-style performance courtesy of the 4130 architecture
•Crystal: Scratch-resistant sapphire crystal (original Rolex specification)
•Water Resistance: Per Rolex Oyster-case standards (retains robust everyday water resistance)
•Customization: DIW aftermarket modifications — may include bespoke dial finishes, unique colorways, alternative case coatings, custom bezels, and personalized strap/bracelet options (specific modifications vary by piece)
Design & Aesthetics
•Dial: DIW’s reinterpretation often reimagines the Daytona dial with high-contrast accents, special textures or lacquered finishes, and bespoke subdial treatments that enhance legibility while creating a striking, modern look. Applied markers and strong lume maintain usability in low light.
•Bezel & Case: Depending on the specific DIW package, bezels may be upgraded with alternative materials, coatings, or engraving. The 40 mm Oyster case retains its sporty yet refined silhouette, with muscular lugs and a tapered crown guard.
•Bracelet / Strap: Options typically include the original Oyster bracelet or aftermarket straps (rubber, leather, or hybrid) chosen to complement the DIW aesthetic and improve on-wrist comfort.
Movement Details (Cal. 4130)
•Architecture: Rolex’s Caliber 4130 is a compact, efficient chronograph movement designed for durability and precision. Its reduced part count (compared with traditional chronograph calibers) increases reliability and simplifies maintenance.
•Performance: Smooth chronograph operation with a vertical clutch for precise start/stop, reduced jump in the chronograph seconds hand, and consistent timekeeping. The movement incorporates Rolex’s Parachrom hairspring for improved resistance to shocks and magnetic fields.
•Power Reserve: Approximately 48 hours, providing solid autonomy for daily wear.




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