Strap for Legacy Machine LM101 Red Gold / Blue

The lug width of the MB&F Legacy Machines 52.RL.BL is 20 millimetres. This measurement represents the distance between the two attachment points on the case and is essential for selecting a compatible strap. To verify the correct measurement, use a digital calliper positioned at the lug mounting points.

For this 40 millimetre rose gold case, we recommend alligator leather with vegetable or French tanning as the primary choice, which emphasises aesthetic refinement and develops a rich patina over time. Alternatively, vegetable-tanned calf leather offers versatility and artisanal quality. For sport-elegant contexts, an FKM rubber strap with a deployant clasp is the modern choice.

The strap is replaced by removing the metal lugs (spring bars) from their housings in the case. Use a spring bar tool to compress the internal spring, freeing the end from the hole and extracting the worn strap. Next, insert the new lugs into the passants of the new strap, and reinsert the spring bar into the case ensuring it is perfectly seated. This operation requires care to avoid scratching the rose gold case.

Yes, you can use aftermarket straps with the correct 20 millimetre lug width. The market offers artisanal straps in alligator, calf, shell cordovan and rubber of excellent quality. Always verify that the lug has been precisely measured and that the passants are suitable for the diameter of the original spring bars (typically 1.6 millimetres).

The lifespan of a leather strap depends on usage, climate and care. A high-quality alligator or calf strap, used daily, maintains structural efficacy for 3-5 years under normal conditions. If exposed to constant humidity or extreme temperatures, durability is reduced. The natural patina that develops is part of its beauty, whilst accelerated ageing of the leather base signals the need for replacement.