Smartlet One – Modular strap for watch & smartwatch

Smartlet One is the first patented modular strap that lets you wear your mechanical watch and your smartwatch on the same wrist. A connector at each end: one clips onto your watch (18–24 mm lugs), the other onto your smartwatch (connector included, matching the finish).

Designed and made in Paris to watchmaking tolerances, Smartlet One sets up in 30 seconds — no tools, no modification. Patented system, awarded at Concours Lépine 2025 and selected for CES 2026.

How to choose: tell us your smartwatch / tracker AND your mechanical watch's lug width — we include both matching connectors.

Three finishes:

• Classic — brushed SS316L stainless steel.
• Shadow — sandblasted matte black SS316L.
• Titanium — satin Grade 2 titanium.

Key features

• Two watches, zero compromise.
• 30-second setup, tool-free, reversible.
• Fits 100+ brands (18–24 mm lugs) and all major smartwatches (Apple, Samsung, Garmin, Whoop, Fitbit…).
• 2-year warranty, water-resistant.

Watches, smartwatches and trackers not included. Please check compatibility before ordering.