TAG Heuer · Connected Watch

Strap for Connected E3 45 Stainless Steel

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

Integrated bracelet

The TAG Heuer Connected Watch SBG8A12.BT6219 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 diameter45 mm
ReferenceSBG8A12.BT6219
FamilyConnected Watch
MovementTAG Heuer caliber E3
Year2020 - 2022
CaseCeramic, Stainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Connected Watch SBG8A12.BT6219, seen from the bench

The TAG Heuer Connected Watch SBG8A12.BT6219 is a 45mm stainless steel smartwatch that marked Swiss watchmaking's entry into digital innovation when launched in 2015. This luxury smartwatch features a ceramic case and proprietary attachment system, combining TAG Heuer's manufacturing heritage with advanced technology. Custom straps are crafted to integrate precisely with the watch's complex attachment geometry.

Frequently asked questions

Can you fit a standard strap on the TAG Heuer Connected Watch SBG8A12.BT6219?

No, the bracelet is integrated into the case. The attachment is proprietary to TAG Heuer: no standard strap will fit. What I do in the atelier is craft a custom strap directly onto your case, respecting the geometry of the integrated attachment.

How does the custom strap work for this model?

We work by appointment only at <a href="/pages/casati-booking">Casati Milano</a>. I take measurements directly from your case, model by model. Each strap is handcrafted to integrate seamlessly with the ceramic and steel of the case.

Which leather do you recommend for the Connected Watch?

I prefer Tuscan Leather with vegetable tanning. This watch has a sporty, technical character: vegetable-tanned leather ages with presence, develops patina over time, and stands up well to daily wear without losing strength. It's the honest choice for a smartwatch you wear every day.

How long does a well-made strap last?

With solid leather and proper craftsmanship, expect 4-5 years of heavy use, even 6-7 with care. The leather ages, of course: it darkens, softens, shows signs of wear. That's not a flaw, that's character. An occasional clean with a damp cloth and yearly conditioning keeps it in shape.

Why does the Connected Watch have such a large case?

It's a smartwatch from 2015, when digital screens needed space. The 45mm diameter houses the technology and battery, but it's not a heavy mechanical watch: it's engineered to be worn every day without tiring your wrist. The ceramic keeps it lightweight despite the size.

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