Strap for Roma GMT Stainless Steel / Silver

The lug width of the Schwarz Etienne Roma WRO17MA24SS01AA is 20mm. This measurement is determined by the geometry of the 42mm case and must be respected with precision when selecting an aftermarket strap. Do not use 19mm or 21mm straps, as these would cause lateral play or excessive tension on the lugs.

The best strap depends on intended use. For formal elegance, we recommend alligator leather with vegetable tanning in brown or tobacco tones, which dialogue with the orthogonal lines of the case. For daily versatility, English smooth calf or NATO in grey Cordura canvas offers aesthetic balance. For water activities, an FKM rubber with steel deployante is the most technically appropriate solution.

Strap replacement is performed via the spring bars positioned on the lugs. Use a spring bar tool or small flathead screwdriver: apply gentle pressure to one side of the bar until it retracts, then extract the strap. Repeat from the other side. Insert the new strap by aligning the holes with the bars, then push until it clicks. We recommend having a qualified watchmaker perform this operation if you lack experience.

Yes, any strap with a 20mm lug width is dimensionally compatible. However, aesthetic and constructive compatibility requires attention: verify that the leather thickness does not exceed 3.5-4mm to avoid tension on the lugs, and that the width of the bar seating is consistent with the original lugs (typically 2mm depth). Bespoke straps allow total optimisation.

The lifespan of a leather strap depends on the tanning type and use. Alligator leather with vegetable tanning lasts 3-5 years with moderate daily wear before requiring replacement. English calf lasts 2-3 years. FKM rubber offers durability of 4-6 years. Factors such as sun exposure, humidity, and frequency of wear significantly influence longevity. Regular maintenance with specific creams extends strap life.