Eterna
Adventure 1250.41.11.0217— lug 20mm
Eterna Adventure 1250.41.11.0217: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Eterna 1250.41.11.0217The essential strap measurement.
Browse 20mm straps →1250.41.11.0217
ETA caliber 251.262 Hours, Minutes, Small Seconds | Date | Chronograph
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Adventure
FAQ
What is the lug width of the Eterna Adventure 1250.41.11.0217?
The lug width of the Eterna Adventure 1250.41.11.0217 is 20 millimetres. It is measured from the inner base of one lug to the other, with the watch positioned flat on a rigid surface. This measure is the standard for straps compatible with the model and allows a vast choice of materials and thicknesses without the need for adapters.
Which strap is best suited for the Eterna Adventure 1250.41.11.0217?
The choice depends on your usage. For an elegant-sporty approach, we recommend alligator or shell cordovan with vegetable tanning, which develop characteristic patina over time. For maximum tactical versatility, woven NATO straps in grey-blue tones maintain the sporty soul. For intense water activities, FKM rubber (fluoroelastomer) offers perfect grip when wet and thermal resistance. All materials are available in 20mm lug width.
How do I change the strap on my Eterna Adventure 1250.41.11.0217?
Strap change is a manual procedure requiring no special tools if the case features spring bars (reversible spring pins). Insert a lug bar (thin, flat tool) under the spring bar, press downward until the click, extract the old strap by sliding outward. Insert the new strap by sliding the lugs into the lateral openings until the retention click. For professional installation, Casati Milano offers strap-change service by appointment at our tailoring atelier in Milan.
Can I fit an aftermarket compatible strap on the Eterna Adventure 1250.41.11.0217?
Yes, absolutely. All artisanal straps with 20mm lug width are compatible with the 1250.41.11.0217. Before ordering, verify that the strap is specifically sized for 20mm lug width. Milano Straps offers a dedicated collection of 20mm straps in alligator, calf leather, NATO, and rubber—all mountable without modifications to your Eterna case.
What is the typical lifespan of a leather strap on an Eterna Adventure 1250.41.11.0217?
A leather strap (alligator, calf, shell cordovan) with vegetable tanning typically lasts 3–5 years of daily wear, accounting for natural buckle wear and aesthetic scratching. Lifespan increases if rotated regularly. The leather progressively thins at flex points (lug passages). Woven NATO and FKM rubber straps have longer lifespan (5–7 years) since the materials maintain constant elasticity.