Strap for Manufacture Heart Beat

The Frederique Constant Manufacture FC-945MC4H6 has a lug width of precisely 20 mm. This measurement must be taken from the inner hole of one lug to the other, using a digital calliper positioned perpendicular to the attachment bars. Do not include the pin thickness in your calculation.

For the FC-945MC4H6, we recommend brushed calf leather in tobacco brown or taupe grey, or alternatively vegetable-tanned alligator. These materials mitigate light reflection on the 42 mm case and maintain aesthetic coherence with the dial. Avoid shell cordovan, whose reddish patina would create a discordant contrast with the stainless steel.

The FC-945MC4H6 uses standard quick-release bars. Insert the extraction tool into the side grooves of the pins, apply outward pressure until the retention spring engages, then extract the bar. Reverse the procedure with the new strap, ensuring both pins lock firmly in place.

Yes, any strap with a 20 mm lug width is compatible with the FC-945MC4H6. Verify that the new strap measures no less than 20 mm (which would create excessive play) and no more (which would prevent the lugs from closing). Artisan straps allow customisation of lengths, finishes, and colours.

A high-quality artisan leather strap, worn daily, typically lasts between 2 and 4 years before showing significant wear. Longevity depends on wearing frequency, climate (humidity accelerates deterioration), maintenance (regular cleaning extends lifespan), and tanning method. Vegetable-tanned leathers develop characteristic patina but remain functional beyond 3 years if properly cared for.