Signature Collection Watch Strap: Chamonix Lug Width:18mm They remove the date mechanism

They remove the date mechanism entirely for dial symmetry and regulate each movement to ±15 seconds per day—tighter than factory spec

Finished with an exhibition caseback

Both watches channel the rugged charm and functional aesthetic of WWII instrumentation

A case that balances between presence and comfort

and a 47mm lug-to-lug

Signature Collection Watch Strap: Chamonix Lug Width:18mm They remove the date mechanismInspired by alpine heritage and refined textile craft, the Boundary Layer Studio Signature Chamonix strap brings a fresh perspective to watch wear. Designed for versatility, it pairs naturally with sport watches, field pieces, and even dressier designs, offering a distinctive look that feels both rugged and refined. The topside is crafted from deadstock Loro Piana fabric made from a blend of linen and polyamide, lending the strap a soft, luxurious