Strap for Manual Earth

The lug width of the Armin Strom Manual ST11-ME.90 is 20 millimetres. This dimension is measured from the inner face of the lug, from the point where the attachment meets the case to the opposite inner wall. This measurement ensures complete compatibility with straps specifically engineered for this width.

The choice depends on intended use and personal aesthetic philosophy. A superior alligator leather creates elegant contrast with the exposed mechanics; vegetable-tanned calf develops patina over time; dense nylon NATO offers modern casual aesthetics; high-quality rubber represents the most contemporary and radical choice. For this 43.40-millimetre model, we recommend materials with structured character and visual presence.

Remove the spring bars connecting the lugs to the case using a dedicated spring bar tool. Apply gentle pressure to compress the internal spring, allowing pin removal. Align the new strap's lug holes with the spring bars and push the pin until it clicks into place. Perform this operation with care to avoid case damage.

Absolutely. Provided the strap is manufactured for the 20-millimetre lug width, it is fully compatible with your Armin Strom Manual ST11-ME.90. High-quality artisanal aftermarket straps often guarantee superior finishes and materials compared to OEM options, whilst offering greater aesthetic and functional flexibility. Always verify that the attachments are perfectly aligned.

Strap longevity depends on tanning method, leather quality, and intensity of use. High-quality vegetable-tanned leather, with moderate wear, typically lasts 3-5 years before replacement. The leather will develop natural patina over time. Frequent exposure to water, perspiration, and climate variations accelerates deterioration. With proper maintenance and periodic replacement, the strap remains functional and aesthetically pleasing throughout the watch's lifetime.