Strap for Heritage Spirit Date Automatic 39mm Red Gold Guilloche

The Montblanc Heritage 113705 features 18mm lug width. This measurement must be verified using a digital calliper between the two lateral attachment pins of the case to ensure precise compatibility with aftermarket straps.

For the 113705 in 18-karat red gold, we recommend natural alligator or vegetable-tanned calf leather, which create chromatic harmony with the warmth of the metal. Alternatively, grey-blue silk-twisted NATO offers contemporary styling, whilst cordovan represents the longevity choice.

Use a spring bar tool to access the lateral attachment pins of the case. Gently push the retractable pin towards the centre, remove the old strap, and insert the new one ensuring the pins engage completely within their respective seats.

Yes, all straps with 18mm lug width are compatible with the 113705. We recommend artisanal straps of superior quality that respect millimetric tolerance and pin positioning, avoiding oscillation or stress on the case.

A quality vegetable-tanned leather strap typically lasts 3-5 years with daily wear. Longevity depends on usage frequency, ambient humidity, and tanning quality. Shell cordovan offers superior durability (7-10 years), whilst aniline calf requires more careful maintenance.