Moritz Grossmann · Atum

Strap for Atum White Gold / Silver

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter41 mm
ReferenceMG-000464
FamilyAtum
MovementMoritz Grossmann caliber 100.1 hours, minutes, small seconds
Year2013
CaseWhite 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-000464

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Atum MG-000464, seen from the bench

The Moritz Grossmann Atum mounts the in-house caliber 100.1 with indication of hours, minutes and small seconds. The movement features the traditional architecture of the Saxon house with elaborate hand-finished details. Reference MG-000464 is distinguished by the purist approach in time indication.

Frequently asked questions

What is the lug width of the Moritz Grossmann Atum MG-000464?

The lug width (distance between spring bar attachments) of the Moritz Grossmann Atum MG-000464 is 20 millimetres. This measurement is essential for selecting a compatible strap. It is measured from the centre of one lug to the centre of the opposite lug on the inside of the case.

Which strap is most suitable for the Moritz Grossmann Atum MG-000464?

For the MG-000464 in white gold, an alligator strap with vegetable tanning in black or dark brown is most coherent with the case's geometric rigour and understated aesthetic. Alternative options of comparable quality include cognac-coloured calf leather, burgundy Horween shell cordovan, and charcoal-grey tweed NATO. The selection depends on intended use and desired stylistic tone.

How do I change the strap on the Moritz Grossmann Atum MG-000464?

The MG-000464's strap is changed via the spring bar attachments integrated into the case. Using a spring bar tool, apply gentle pressure to one end of the spring mechanism, remove the old strap, and insert the new one by aligning the lugs with the attachment holes. Work on a soft, stable surface to avoid scratching the white gold case. If unfamiliar with the procedure, consulting a watchmaker is advisable.

Can I use an aftermarket strap from another brand on the Moritz Grossmann Atum MG-000464?

Yes, any strap with 20mm lug width is mechanically compatible. However, aesthetically and qualitatively, the timepiece deserves an artisanal strap crafted from noble materials—alligator, premium calf, or shell cordovan—to preserve the integrity of the investment. Budget or synthetic leather straps would diminish the overall harmony.

What is the lifespan of a leather strap on the Moritz Grossmann Atum MG-000464?

A naturally tanned vegetable leather strap typically lasts 5–8 years with daily wear, depending on climate, humidity, and usage frequency. During this period, the leather develops a rich patina that enhances its aesthetic value. Shell cordovan, due to its dense fibre structure, can last 10–12 years. A NATO strap in fabric typically lasts 8–10 years. Regular maintenance—cleaning, drying, and occasional conditioning with appropriate creams—significantly extends 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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only