Strap for Atum Pure M Stainless Steel / Blue

The lug width of the Moritz Grossmann Atum MG-000688 is 20mm. This is the ISO standard measurement for the distance between the inner shoulders of the lugs. Verifying this dimension before purchasing a strap is essential, as even small variations prevent proper fit and secure attachment.

The ideal strap depends on personal preference and intended use. For aesthetic coherence with the model's Bauhaus design philosophy, we recommend alligator in black or brown, or shell cordovan in natural tones that develop rich patina over time. NATO straps in silk or cotton offer functional versatility and reversibility. Rubber straps excel in durability and water resistance. All materials are available in 20mm configuration from our collection.

Remove the strap using a spring bar tool or fine screwdriver to slide out the strap bars connecting the strap to the case. Extract the bars carefully from bottom to top without forcing. Before replacement, lightly clean the lug areas to remove residue. If uncertain, entrust the operation to a professional watchmaker to avoid damage to the stainless steel lug attachments.

Yes, provided they are manufactured with a precise 20mm lug width. Milano Straps artisanal straps, custom-made in alligator, calf leather, shell cordovan, or rubber, are fully compatible with your Atum. Always verify the strap is measured for 20mm and that the ear ends are properly shaped for your specific lug configuration.

A properly maintained natural leather strap typically lasts between 3 and 7 years depending on usage intensity and material choice. Shell cordovan, owing to its structural density, generally outlasts alligator. Factors including humidity exposure, UV exposure, and frequency of wear influence longevity. Regular maintenance—gentle cleaning, annual conditioning, air-drying after water contact—significantly extends strap lifespan.