Technical Archive

Apple
Watch Edition MJ3K2LL

Apple Watch Edition MJ3K2LL: strap made to measure on the watch at the Casati Milano atelier, by appointment.

Watch Edition 38mm

Technical Specifications

Apple MJ3K2LL
Reference

MJ3K2LL

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 Edition was introduced in 2015 as a premium version of the Apple smartwatch line. The device features the Apple Watch caliber with functions for hours, minutes, seconds, chronograph, perpetual calendar, moon phases, and alarm. The case presents premium materials with a digital crown for navigating the touchscreen interface.
Made to Measure

The strap for this watch is made to measure

On the Apple Watch Edition 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.

Book a consultation →

FAQ

Can a standard strap be fitted to the Apple Watch Edition MJ3K2LL?

No, the attachment is integrated into the case and does not accept standard straight bars. However, a custom-made strap, constructed specifically to the watch's geometry, fits perfectly. This is the specialty of the <a href="/pages/casati-booking">Casati Milano</a> atelier, which measures the case directly and crafts a bespoke strap.

How does the process of creating a custom strap for the MJ3K2LL work?

The process begins with an appointment-based consultation at <a href="/pages/casati-booking">Casati Milano</a>. The craftsman measures the exact dimensions of the lugs on your watch, discusses leather choices, finishes, and closure options. The strap is then hand-crafted in the Milan workshops, precisely calibrated to the Apple Watch's proprietary attachment, and finally fitted under your supervision.

Which type of leather best suits the character of the Apple Watch Edition MJ3K2LL?

Vegetable-tanned leathers are ideal: aged calf with fine grain for understated elegance, alligator or iguana for a more structured aesthetic, ostrich leather for visual movement. Neutral colors—dark brown, black, grey taupe—allow the polished ceramic and rose gold of the case to remain protagonists, creating a coherent aesthetic dialogue.

How long does a well-made bespoke strap last?

A strap constructed with artisanal methods and quality leather can last decades, developing a patina that increases its character over time. Longevity depends on care and use, but quality craftsmanship guarantees a structural foundation that resists daily wear without compromise.

Why does the 2015 Apple Watch Edition represent a crucial moment in contemporary watchmaking?

The MJ3K2LL marks the first genuine attempt by a technology company to enter the luxury materials territory with awareness. The choice of high-resistance ceramic and 18-karat rose gold, paired with a sophisticated digital movement, defines a new aesthetic language where technology does not compromise on preciousness and formal inquiry.