Apple · Watch

Strap for Watch 38mm

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

Integrated bracelet

The Apple Watch MJ332LL 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 diameter33 mm
ReferenceMJ332LL
FamilyWatch
MovementApple 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
Year2015
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 Watch MJ332LL, seen from the bench

The Apple Watch was introduced in 2015 as a multi-function smartwatch with the watchOS operating system. The device integrates chronograph, perpetual calendar, moon phases and alarm functions, as well as sensors for physical activity monitoring. The MJ332LL reference features wireless connectivity and a touch screen for interaction with dedicated applications.

Frequently asked questions

Can a watch strap be fitted to the Apple Watch MJ332LL?

The MJ332LL's attachment does not accommodate standard pin-bar straps: it is integral to the case design. However, a new strap can be constructed bespoke directly onto the watch. <a href="/pages/casati-booking">Casati Milano</a> realises this personalisation with precise measurement of your watch's lug area and bespoke strap construction in leather.

How does the bespoke strap process work for the MJ332LL?

The process begins with a consultation where Casati Milano measures the exact dimensions of your watch's attachment points. You select the leather, colour and finishing details, then the atelier crafts the strap by hand according to these specifications. We don't adapt a universal lug: we create a new object that integrates perfectly with your MJ332LL's geometry.

What type of leather suits the character of the Apple Watch MJ332LL?

The minimalist character of the MJ332LL calls for leather with subtle, natural texture: vegetable-tanned calf or leather with irregular grain maintains aesthetic coherence with the case's restraint. Neutral colours—natural or deep black—better reflect the formal purity of the smartwatch than livelier tones.

How long does a strap made by Casati Milano last?

A strap constructed from superior leather and crafted through bespoke methods lasts many years with proper care. The patina that develops over time becomes part of your watch's story. Longevity depends on the leather chosen, usage intensity and maintenance: a well-cared-for strap improves aesthetically as it ages.

Why does the 2015 MJ332LL still deserve a bespoke strap today?

The Apple Watch MJ332LL marks a crucial moment in digital watchmaking: the convergence of precision engineering and minimalist design. Its value lies in design coherence and build quality, not obsolescence. A bespoke strap updates your watch while respecting its original philosophy, transforming it into a deeply personal object without compromising its essence.

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