Strap for Conquest 34 Sylt Edition

The lug width of the Longines Conquest 3.430.4.90.9 is 17 mm. This dimension, measured between the spring bars of the case, is essential for selecting compatible straps. Proper measurement requires a digital calliper positioned perpendicularly to the lugs, measuring from the centre of one to the centre of the other, to ensure accuracy.

For the Conquest 34 mm, noble materials are recommended: alligator (ventralis or hornback), vegetable-tanned calf leather, or shell cordovan. Black polished alligator creates dramatic contrast with the brushed steel case; cognac calf offers generous ageing and natural patina development; shell cordovan provides intrinsic lustre that dialogues with the metallic case material.

To change the strap safely, use a dedicated spring bar removal tool or consult a specialist watchmaker. Place the watch on a stable support, identify the correct extraction direction of the spring bars, and apply uniform, gentle pressure. Avoid improvised tools or hammers to preserve the brushed steel case finishing.

Yes, provided the lug width is precisely 17 mm and the spring bar diameter matches the Longines case standard. Always verify technical specifications before purchase. milanostraps.it offers verified 17mm straps, customisable and tested for compatibility with the Conquest model.

A premium leather strap (alligator, vegetable-tanned calf, shell cordovan) typically lasts 3–5 years with daily use, provided regular maintenance: avoid prolonged moisture exposure, protect from direct sunlight, and replace when fibres begin to fray. milanostraps straps include an 18-month warranty.