ChronoTheory & Co · AV-98

Strap for AV-98 Timpani Rose

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter42 mm
ReferenceCTW-027-Rose
FamilyAV-98
MovementChronoTheory & Co caliber 6498-1 CT EDITION hours, minutes, small seconds
Year2025
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the AV-98 CTW-027-Rose

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The AV-98 CTW-027-Rose, seen from the bench

The ChronoTheory & Co AV-98 CTW-027-Rose is a contemporary independent watchmaking piece featuring a 42 mm stainless steel case with rose gold details. It is powered by the ChronoTheory & Co caliber 6498-1 CT EDITION movement. The watch has a 22 mm lug width, a classical proportion referencing mechanical watchmaking from the 1970s-1980s era. Hours, minutes, and small seconds follow a reinterpreted classic configuration with contemporary proportions.

Frequently asked questions

What is the lug width of the ChronoTheory & Co AV-98 CTW-027-Rose?

The lug width is 22 millimetres, measured from the inner point of one spring bar to the other. This dimension is specific to the AV-98 model and determines compatibility with artisanal straps. Always verify this measurement before ordering to ensure perfect fit.

Which strap is best suited for the ChronoTheory & Co AV-98?

For the CTW-027-Rose we recommend alligator leather with vegetable tanning in cognac or medium brown, which emphasises the rose gold details of the case. Alternatively, robust calf leather offers wrist comfort with wear resistance, whilst a NATO fabric strap ensures everyday versatility. Rubber is the contemporary choice for sports use.

How do I change the strap on this watch?

Obtain a spring bar removal tool. Position the watch on a stable surface, insert the tool beneath the strap lug from one side, apply gentle downward pressure, then extract the spring bar. Repeat on the opposite side. Insert the new spring bars into the artisanal strap, align with the lugs and press until they click into position.

Can I use an aftermarket strap on my ChronoTheory & Co case?

Absolutely. Any strap with compatible 22 millimetre lugs is suitable. Our artisanal straps on milanostraps.it are crafted from superior leather with finishes that enhance the stainless steel and rose gold case. Verify the lug width before ordering and select the correct measurement.

How long does a leather strap last before needing replacement?

With artisanal vegetable tanning, 3-5 years of daily wear, developing natural patina that improves over time. With fast industrial tanning, 18-24 months. Longevity depends on frequency of use, sun exposure, humidity and maintenance. Our straps develop character with age, thanks to authentic materials and constructive techniques, delaying replacement whilst enriching aesthetics.

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