Strap for Manual Air

The Armin Strom Manual TI11-MA.11 features a 20mm lug width. This measurement is the standard for classical wristwatches and represents the optimal balance between the proportions of the 43.4mm case and compatibility with high-quality artisanal straps. Verify the lug width by positioning a digital calliper perpendicular to the internal attachment pins.

Premium alligator leather with irregular grain and matte finishes is the optimal choice: the tactile contrast between textured leather and titanium creates aesthetic harmony. Alternatively, vegetable-tanned leather allows for natural patination that dialogues with the ageing of the titanium case. For more contemporary approaches, technical rubber provides practicality and absolute stain resistance.

Strap replacement is performed via the spring bars positioned at the ends of the lug. Use a dedicated spring bar removal tool or a small flathead screwdriver to press the locking mechanism, lifting it slightly until it disengages from its seat. Remove the old strap and insert the new one following the reverse procedure, ensuring the spring bar is fully secured in both housings.

Yes, any strap with a 20mm lug width is compatible. However, we recommend prioritising artisanal manufacturers that respect the optimal thickness of 1.2–1.4mm to avoid altering the visual balance of the case. The quality of the leather and the finishing of the keeper must be commensurate with the excellence of the timepiece.

Longevity depends on the quality of the tanning and daily use. An alligator or vegetable-tanned calf strap typically lasts 3–5 years under moderate wear. Leather ageing is natural and desirable: patina imparts character to the strap. Replacement becomes necessary when the leather loses elasticity or the keeper shows wear. Rubber straps last longer (5–7 years) but lose resilience over time.