DIWF Edition — Custom Nylon Velcro Strap
The modified DiW Rolex Daytona IRBIS represents a radical departure from traditional horology, substituting conventional metals for an advanced Quartz Fiber construction. Executed by DIWF, this specific replica achieves a remarkable milestone in the custom market by weighing in at an astonishingly light 55.8g. Collectors evaluating custom builds frequently praise DIWF for their mastery of this composite material, noting the precise hand-chamfering and polishing that faithfully replicates the genuine DiW aesthetic without compromising structural integrity.
At the heart of this ultra-lightweight chronograph is the highly regarded 4130 clone movement. Unlike inferior modified calibers that increase case proportions, the 4130 architecture ensures a slim profile and full operational integrity of all subdials. The movement features a bidirectional winding module and delivers a power reserve of approximately 36 hours. The integration of this mature caliber allows the piece to maintain the precise mechanical feel of a traditional Daytona while operating within a radically modernized chassis.
Dimensionally, the DIWF IRBIS remains true to the fundamental Daytona lineage with a 41mm case diameter and a confirmed thickness of just 12.1mm. The entire case, fixed tachymeter bezel, and caseback are milled from layered Quartz Fiber, creating a unique visual texture that shifts under different lighting conditions. The dial features striking dark green accent tones, complemented by accurate Chromalight luminescent applications on the indices and hands. Unlike standard 904L Oystersteel models, this piece offers an entirely different, featherweight tactile experience on the wrist.
- Movement: 4130 Clone Caliber — Approximately 36 hours
- Case Material: Quartz Fiber, 41mm diameter, 55.8g total weight
- Bezel: Machined Quartz Fiber with tachymeter scale
- Crystal: Scratch-resistant sapphire with colorless AR coating
- Bracelet: Premium Nylon Velcro strap with composite hardware
- Water Resistance: Stated 30m — professional pressure test recommended before swimming
This piece is tailored for the avant-garde collector who appreciates the mechanical pedigree of the Daytona but desires a highly contemporary, ultra-lightweight aesthetic. It excels in casual and high-activity environments where traditional steel sports watches might feel cumbersome.


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