IWC · Da Vinci
Strap for Da Vinci Perpetual 3921 Red Gold / Silver
Takes 17 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
17mm
Lug width17 mm
Case diameter43 mm
ReferenceIW3921-01 (aka: IW392101, 3921-01, 392101)
FamilyDa Vinci
MovementIWC caliber 89630 hours, minutes, small seconds | date, day, month, perpetual calendar, year indicator | Chronograph, Flyback | moonphase
Year2017
CaseRed Gold
The Da Vinci IW3921-01 (aka: IW392101, 3921-01, 392101), seen from the bench
The IWC Da Vinci IW3921-01 is a perpetual calendar chronograph with 43mm red gold case and flyback function. It houses the IWC 89630 caliber, featuring hours, minutes, small seconds, date, day, month, year, and moon phase display. The lug width is 17mm, requiring specific straps not interchangeable with other IWC models due to the round case architecture and proportioned design.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only