Eterna
Contemporary 7720.41.13.1229— lug 20mm
Eterna Contemporary 7720.41.13.1229: 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 7720.41.13.1229The essential strap measurement.
Browse 20mm straps →7720.41.13.1229
Eterna caliber 3510 Hours, Minutes, Seconds | Big Date
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Contemporary
FAQ
What is the lug width of the Eterna Contemporary 7720.41.13.1229?
The lug width of the 7720.41.13.1229 is 20mm. This dimension is determined by the geometry of the 38.50mm case and is essential for selecting compatible straps that maintain correct aesthetic proportions.
Which strap is most suitable for the Eterna Contemporary 7720.41.13.1229?
For this model, a vegetable-tanned alligator strap or high-quality calf leather enhances the modern architecture of the brushed stainless steel case. Cognac or dark brown tones offer aesthetic continuity, whilst a grey NATO proposes contemporary dynamism.
How do you change the strap on the Eterna Contemporary 7720.41.13.1229?
The 7720.41.13.1229 features standard removable 20mm spring bars. Using a spring bar tool, remove the bar from the rear seat, extract the original strap, and insert the new strap. The operation requires care to avoid scratching the case.
What is the average durability of an artisanal leather strap for the 7720.41.13.1229?
A vegetable-tanned leather strap of quality, worn daily, maintains structural integrity for 2-3 years. Durability depends on ambient humidity, frequency of use, and maintenance. Regular care with specific creams significantly extends the strap's lifespan.
Is the original strap of the 7720.41.13.1229 compatible with other 20mm watches?
Yes, the 20mm lug width is an international standard. However, aesthetic proportions vary depending on case design: a strap engineered for the Contemporary may not enhance watches with different caseback configurations or diameters. Constructive compatibility does not imply aesthetic harmony.