Strap for Hydroconquest Quartz 39 Red / Rubber

The lug width is 19 mm. This measurement is specific to the 39 mm HydroConquest model and is essential for selecting compatible straps. Always measure from the inside of the upper lug to the lower lug, perpendicular to the lug axis, excluding the spring bar.

The choice depends on intended use. For formal elegance: alligator leather in vegetable tanning (dark brown or black). For daily versatility: anilline calf leather. For authentic diving heritage: vulcanised rubber. For collectors: shell cordovan. The material must suit the balanced proportions of the 39 mm case and maintain visual symmetry with the lugs.

Remove the spring bar using a spring bar tool, pushing downward until it disengages from the lug. Extract the old strap. Insert the new strap by aligning the end holes with the lug apertures, then reposition the spring bar until you hear a click. Verify that the strap is fully secured before wearing the watch.

Yes, provided the lug width is exactly 19 mm and the spring bar diameter matches the standard (typically 1.8 mm for Swiss watchmaking). Verify that the strap lugs fit perfectly within the lug geometry without lateral play. Bespoke artisanal straps guarantee maximum fitting precision.

Durability varies with material and usage patterns. Alligator and vegetable-tanned calf leather: 3–5 years of daily wear, visibly patinating. Shell cordovan: 5–7 years. Vulcanised rubber has superior longevity (8–10 years) but requires periodic compactness checks. Casati Milano atelier offers 18-month warranty on all bespoke straps with replacement options.