Archimede
Pilot UA7939-C1.3— lug 20mm
Archimede Pilot UA7939-C1.3: 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
Archimede UA7939-C1.3The essential strap measurement.
Browse 20mm straps →UA7939-C1.3
ETA caliber 7750 Hours, Minutes, Small Seconds | Date, Day | Chronograph
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Pilot
FAQ
What is the lug width of the Archimede Pilot UA7939-C1.3?
The lug width of the Archimede Pilot UA7939-C1.3 is 20mm. This measurement represents the internal distance between the lug ends and determines which strap is compatible with the watch. Always measure this distance perpendicularly from the centre of one lug end to the centre of the opposite end for maximum accuracy.
Which strap is most suitable for the Archimede Pilot UA7939-C1.3?
For the Pilot UA7939-C1.3, straps in alligator leather with vegetable tanning, full-grain calf leather, or NATO fabrics in cotton or polyamide are recommended. Vegetable-tanned alligator develops natural patina over time, calf leather offers visual solidity, whilst NATO fabric provides tactical practicality and security. Choice depends on context of use: formal-casual for leather, sportive-avionic for fabric.
How do you change the strap on an Archimede Pilot UA7939-C1.3?
To change the strap, use a spring bar tool (tool for removing the anchor springs). Position the tool under the lug end, exert inward pressure to compress the spring, then withdraw the lug end from the slot. Repeat on the opposite side. Insert the new strap by threading the lug ends into the housings, ensuring the spring snaps correctly into the anchor position.
Is an aftermarket strap compatible with the Archimede Pilot UA7939-C1.3?
Yes, any strap with a 20mm lug width is compatible with the Pilot UA7939-C1.3. Artisanal aftermarket straps often offer superior construction quality compared to OEM models, with more refined leather working, bespoke finishings and natural ageing of materials. Always verify that the declared width is exactly 20mm.
How long does a leather strap last on an Archimede Pilot UA7939-C1.3?
A high-quality leather strap (alligator, calf, cordovan) lasts between 3 and 7 years with regular use, varying based on climate, frequency of use and tanning quality. Leather with vegetable tanning ages better and can last beyond 7 years, developing patina and aesthetic character. Synthetic leather or low-quality straps wear out between 1 and 2 years.