Technical Archive

Apple
Watch MJ3U2LL

Apple Watch MJ3U2LL: strap made to measure on the watch at the Casati Milano atelier, by appointment.

Watch 42mm

Technical Specifications

Apple MJ3U2LL
Reference

MJ3U2LL

Movement

Apple caliber Apple Watch Hours, Minutes, Seconds, World Time | Date, Day, Month, Perpetual Calendar, Week Indicator, Year Indicator | Chronograph | Moonphase, Sun position / rising time | Alarm | Smartwatch

The Heritage

The Apple Watch was introduced in 2015 as the first smartwatch from the Californian manufacturer. The device features the Apple Watch caliber with multiple digital functions including chronograph, perpetual calendar, moon phases and alarm. The case integrates health monitoring sensors and supports wireless connectivity for interaction with iOS devices.
Made to Measure

The strap for this watch is made to measure

On the Apple Watch the bracelet is drawn as part of the case: no catalogue strap will fit. In the atelier we take the measurements on the watch itself and build the strap on the piece — that is the work of Casati Milano.

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FAQ

Can a strap be fitted to the Apple Watch MJ3U2LL?

The Apple Watch MJ3U2LL has an integrated attachment in the case, so a standard strap with straight bars cannot be fitted. However, it is possible to have a strap crafted entirely bespoke to its specific proportions, directly in the atelier by <a href="/pages/casati-booking">Casati Milano</a>, which measures the watch and creates the strap on its actual specifications.

How does the bespoke strap construction work for this model?

The process begins with an atelier session where the watch is examined and measured in detail, particularly the strap attachment points. All proportions and nuances of the strap seat are documented. The strap is then handcrafted, often with the watch present during production, to ensure perfect fit and precise adjustments to the actual case form.

Which leather best suits the character of the Apple Watch MJ3U2LL?

The MJ3U2LL, with its glossy white ceramic and minimalist design, pairs beautifully with vegetable-tanned leathers that develop natural patina over time, or with matte finishes such as suede and nubuck that elegantly contrast the luminosity of the case. Textured leathers like alligator also create a material richness that amplifies the sculptural element of the ceramic.

How long does a well-made bespoke strap last?

A strap crafted with traditional techniques and superior leathers ages beautifully, developing character and patina. It can last for years if properly maintained. Longevity depends on the leather chosen, daily wear, sun exposure, and periodic maintenance that <a href="/pages/casati-booking">Casati Milano</a> is able to advise on and provide.

Why is the MJ3U2LL a particularly interesting model for bespoke strap work?

Because the integrated attachment in the case rules out standard straps, yet opens the opportunity for entirely personalised artisanal work. Its ceramic and steel case demands a strap that is a coherent continuation of the design, not merely an accessory. This is precisely what a specialised atelier like <a href="/pages/casati-booking">Casati Milano</a> excels at: transforming a constructive constraint into a superior aesthetic quality.