Technical Archive

Moritz Grossmann
Atum MG-000502— lug 20mm

Moritz Grossmann Atum MG-000502: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Atum Pure Stainless Steel / Grey

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Moritz Grossmann MG-000502
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

MG-000502

Movement

Moritz Grossmann caliber 201.0 Hours, Minutes, Small Seconds

The Heritage

The Moritz Grossmann Atum MG-000502 represents contemporary watchmaking excellence from Glashütte. This model features a 41mm stainless steel satined case with an integrated monobloc lug system, embodying Bauhaus rigor and modern design. The heart is the Moritz Grossmann 201.0 caliber, a manual-wind movement with hours, minutes and small seconds. The sapphire crystal is anti-reflective and water resistance reaches 50 metres. The 20mm lug width represents the ideal compromise between comfort and visual proportion.

FAQ

What is the lug width of the Moritz Grossmann Atum MG-000502?

The Moritz Grossmann Atum MG-000502 features a 20mm lug width. This measurement represents the distance between the spring bar pins and accommodates aftermarket straps with universal 20mm lugs. To verify correct measurement, use a digital calliper positioned between the outer extension of both pins.

What is the best strap for the Moritz Grossmann Atum MG-000502?

For this timepiece, we recommend alligator straps (French tanning) or vegetable-tanned calf leather, which amplify the sobriety of the brushed steel case. If you prefer daily versatility, a heavy NATO fabric (1.4-1.5mm) or FKM rubber in black ensures structural robustness. Your choice depends on use context: formal occasions require alligator or calf, whilst sport/casual applications require NATO or rubber.

How do I change the strap on my Moritz Grossmann Atum MG-000502?

If your watch is fitted with an integrated bracelet, strap replacement with a custom strap requires removal of the bracelet using a specialised tool (torque). Subsequently, universal 20mm lugs are applied to your chosen strap—an operation we recommend performing at a specialist atelier such as Casati Milano to ensure perfect alignment and prevent case damage.

Which aftermarket straps are compatible with the Moritz Grossmann Atum MG-000502?

All straps with 20mm lug width are compatible with this model. Our collection offers alligator, calf leather (vegetable-tanned and vegetable-tanned aniline), shell cordovan, NATO fabrics, and FKM rubber—all available with 20mm lugs. Each strap is shipped ready for installation or customisable on request through the Casati Milano atelier.

How long does a leather strap last on the Moritz Grossmann Atum MG-000502?

Lifespan depends on material and usage patterns. Quality alligator or calf leather, worn in rotation (not daily), guarantees 3–5 years of useful life before replacement. When worn daily, duration decreases to 18–24 months. Shell cordovan, thanks to natural density, exceeds 5–7 years even under intensive use. The patina it develops improves aesthetics over time, transforming the strap into a narrative artefact of your watch.