Eterna
Adventure 1250.43.41.1308— lug 20mm
Eterna Adventure 1250.43.41.1308: 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 1250.43.41.1308The essential strap measurement.
Browse 20mm straps →1250.43.41.1308
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 exact lug width of the Eterna Adventure 1250.43.41.1308?
The Eterna Adventure 1250.43.41.1308 features a lug width of 20mm. This dimension is critical for strap selection: you must measure the distance between the lugs on the case using callipers to verify absolute compatibility. A tolerance of ±0.5mm may cause noticeable misalignment.
Which strap is recommended for the Eterna Adventure 1250.43.41.1308?
For the Adventure 1250.43.41.1308, the following are recommended: alligator with vegetable tanning (luxury option with developable patina), English calf in brown or burgundy (restrained elegance), NATO in silk-woven or cotton (sporty practicality), FKM rubber in black or anthracite (extreme functionality). Choice depends on primary use and desire for chromatic development over time.
How do you change the straps on this model?
Changing the strap on the Eterna Adventure 1250.43.41.1308 requires: 1) a spring bar compatible with 20mm lug width; 2) a spring bar removal tool; 3) precise lateral pressure technique. It is advisable to perform this operation on a clean, soft surface to avoid scratching the case. Alternatively, consult an authorised service centre or the Casati Milano atelier for bespoke personalisation.
Which aftermarket straps are compatible with the 1250.43.41.1308?
Any strap equipped with lugs compatible with 20mm is suitable. Milano Straps offers a curated selection of models in fine leather (alligator, calf, shell cordovan), NATO and rubber, all tested for aesthetic proportion with 42mm cases and configured with standard 20mm spring bars.
How long does a leather strap typically last on this watch?
A quality leather strap on a timepiece such as the Adventure 1250.43.41.1308, subjected to moderate use (worn 4-5 days weekly), maintains structural integrity for 18-24 months. With vegetable tanning, the leather develops visible patina after 3-6 months of use, but mechanical resistance remains unchanged for up to 30 months. Acceleration factors: continuous direct sun exposure, acidic perspiration, frequent immersion in fresh water.