A. Lange & Söhne
1815 414.049— lug 20mm

The A. Lange & Söhne 1815 ref. 414.049 has a lug width of 20 mm. This measurement is taken between the two internal lug pins and determines strap compatibility. To measure accurately, use a digital calliper from pin to pin internally, ensuring you do not confuse this with the visual width of the case at the lug position.

We recommend alligator of quality (preferably Mississippiensis with natural regular grain), calf leather with vegetable tanning from French or English tanneries, or shell cordovan for those who value density and longevity. Alligator offers superior dimensional stability and develops an enviable patina over time. For a more informal, sporty approach, quality FKM rubber maintains versatility. Choice depends on context of use and personal aesthetic preference.

Remove the strap using a spring bar tool with two fine tips. Insert the tips into the gaps beside the lug pin, compress gently to release the internal spring tension, and slide the strap outward. To install the new strap, align the holes with the pin, compress from both sides until you hear or feel the click indicating secure seating. This is a delicate operation but entirely manageable with careful procedure.

Yes, absolutely. The strap simply requires a 20 mm lug width and holes compatible with standard 1.6–1.8 mm diameter pins. We recommend sourcing straps from specialised suppliers guaranteeing construction quality and noble materials—alligator, calf, cordovan—worthy of the watch. A well-made artisanal strap not only fits perfectly but enhances the constructive nature of the 414.049.

Durability depends on material and use frequency. Quality alligator, with proper care (avoiding excessive moisture and abrasive dirt), lasts 5–10 years of daily wear. Vegetable-tanned calf has similar lifespan but requires greater attention to humidity. Shell cordovan is the most durable, with useful life reaching 15–20 years. FKM rubber lasts 3–5 years. Maintenance involves gentle cleaning with a damp cloth and air drying.