Moritz Grossmann · Atum

Strap for Atum Date Rose Gold

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter41 mm
ReferenceMG-000854
FamilyAtum
MovementMoritz Grossmann caliber 100.3 hours, minutes, small seconds | date | power reserve indicator
Year2017
CaseRose Gold

Spring bar

Swiss Standard universal spring bars

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

Straps for the Atum MG-000854

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Atum MG-000854, seen from the bench

The Moritz Grossmann Atum features the in-house caliber 100.3 with hour, minute, small seconds, date, and power reserve indicators. The German manufacture offers this timepiece with classic complications integrated into its base movement.

Frequently asked questions

What is the lug width of the Moritz Grossmann Atum MG-000854?

The lug width of the Moritz Grossmann Atum MG-000854 is 18mm. This dimension is measured from the inner point of one lug to the other, perpendicular to the spring bar tube. All 18mm artisanal straps are compatible with this model without requiring any modifications.

Which strap is most suitable for the Moritz Grossmann Atum MG-000854?

For the Atum in rose gold, we recommend shell cordovan for constructive elegance, alligator for formal character, or vegetable-tanned calf leather for daily wear. NATO straps represent the contemporary alternative for those seeking versatility. Your choice depends on the intended use and the patina you wish to develop over time.

How do I change the strap on the Moritz Grossmann Atum MG-000854?

The Moritz Grossmann Atum MG-000854 uses solid pins rather than spring bars. To change the strap: gently remove the pin using a dedicated tool, extract the old strap, align the new strap with the lug tube, and push the pin until fully seated. The operation takes less than a minute and can be repeated without risking lug wear.

Can I use aftermarket straps with the Moritz Grossmann Atum MG-000854?

Yes, all 18mm straps are compatible with the MG-000854. Milano Straps offers a dedicated collection of artisanal straps, crafted from premium materials including alligator, shell cordovan, and vegetable-tanned calf. Each strap is designed to integrate perfectly with the proportions and aesthetics of the timepiece.

How long does a leather strap last on the Moritz Grossmann Atum MG-000854?

A quality artisanal leather strap typically lasts 3-5 years with daily wear, depending on tannage type and frequency of changes. Shell cordovan can reach 7-8 years. Durability depends on regular maintenance, humidity exposure, and the constructive quality of the strap. Milano Straps' straps are crafted from premium materials that guarantee superior longevity.

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