Porsche Design · Monobloc Actuator

Strap for Monobloc Actuator 24H - Chronotimer Limited Edition

Integrated bracelet: measurements, the most common questions, and the way to a made-to-measure strap.

Integrated bracelet

The Porsche Design Monobloc Actuator 4046901564148 is designed with a bracelet integrated into the case. For a compatible made-to-measure strap, the Casati Milano atelier builds it on your watch.

Case diameter46 mm
Reference4046901564148
FamilyMonobloc Actuator
MovementETA caliber 7754 Additional 24 hours Hand (adjustable), hours, minutes, small seconds | date | Chronograph
Year2018
CaseTitanium

Spring bar

Swiss Standard universal spring bars

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

The Monobloc Actuator 4046901564148, seen from the bench

The Porsche Design Monobloc Actuator 24H Chronotimer Limited Edition is a 45.5mm titanium sports watch embodying Stuttgart engineering philosophy with monocoques architecture and integrated bracelet. This timepiece features a radical technical design that challenges conventional mechanics, paired with custom strap attachments engineered to preserve the original aesthetic integrity of the titanium case.

Frequently asked questions

Can I fit a standard strap on the Porsche Design Monobloc Actuator?

No, the bracelet is integrated into the titanium case — there are no traditional lugs. A standard strap won't attach. For this model, I build a custom strap directly in the atelier, calibrated to your case geometry.

How does the bespoke strap work for the Monobloc Actuator?

We work by appointment only at <a href="/pages/casati-booking">Casati Milano</a>. I take measurements directly from your case, design the personalised attachment, and build the strap from scratch. Every detail is tailored to your specific watch.

Which leather would you recommend for this model?

I favour hand-treated Tuscan leather — it speaks naturally with titanium, develops a patina that ages beautifully alongside the metal. For more immediate elegance, Barenia offers that sportive softness the Monobloc Actuator deserves.

How long does a well-made strap last?

A quality leather strap lasts 5–8 years with regular wear, often longer. It depends on how you care for it: avoid prolonged water exposure, brush it occasionally with soft bristles. Leather ages, develops character — that's not a flaw, that's beauty.

Why does the Monobloc Actuator have an integrated bracelet?

It follows Porsche Design philosophy: form follows function, monocoque architecture. The integrated bracelet is part of the structure, not an accessory. That's why it deserves a bespoke strap that speaks the same technical language, not a quick fix.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only