Technical Archive

Louis Erard
Excellence 34238AA07.BVA26— lug 20mm

Louis Erard Excellence 34238AA07.BVA26: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Excellence Petite Seconde 39 Terracotta

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Louis Erard 34238AA07.BVA26
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

34238AA07.BVA26

Movement

Sellita caliber SW261-1 b Hours, Minutes, Small Seconds

The Heritage

The Louis Erard Excellence 34238AA07.BVA26 is a 39 mm stainless steel watch featuring the Sellita SW261-1 b automatic movement with small seconds. The lug width is 20 mm. This classically proportioned timepiece showcases a transparent caseback and combines Swiss reliability with traditional mechanical watchmaking principles established by the manufacture since 1815.

FAQ

What is the lug width of the Louis Erard Excellence 34238AA07.BVA26?

The lug width (strap width) of the Louis Erard Excellence 34238AA07.BVA26 is 20 mm. This measurement refers to the distance between the lug pins on which the strap is anchored. To verify this, use a digital calliper positioned parallel to the pins, measuring the distance from inside to inside. Do not confuse lug width with strap thickness: these are independent parameters.

Which strap do you recommend for the Louis Erard Excellence 34238AA07.BVA26?

The Louis Erard Excellence 34238AA07.BVA26 pairs ideally with straps in authentic materials. Dark brown alligator with medium grain accentuates the case's classical elegance. If you prefer versatility, vegetable-tanned calf offers natural patina and authentic ageing. For daily use, a cotton NATO maintains correct visual proportions. Avoid synthetic leather straps: this model deserves materials that evolve over time.

How do I change the strap on the Louis Erard Excellence 34238AA07.BVA26?

To change the strap, use a spring bar removal tool or a small screwdriver. Identify the metal pins (spring bars) that run horizontally through the lugs. Push the spring bar towards the centre of the case to release one end, then extract the pin completely. Remove the old strap and insert the pin into the new one, ensuring both sides are correctly engaged. Verify that the strap is not twisted.

Is the strap on the 34238AA07.BVA26 compatible with other models?

Only if they feature the same 20 mm lug width. Compatibility is determined exclusively by this measurement: any strap with 20 mm lugs will fit the Louis Erard Excellence 34238AA07.BVA26. However, the case thickness (its vertical profile) may require straps of a specific width for optimal proportions. We recommend straps designed for 37-40 mm watches to maintain aesthetic harmony.

How long does a natural leather strap last on a watch like the 34238AA07.BVA26?

A quality leather strap (alligator, vegetable-tanned calf) typically lasts 5-8 years with moderate daily use if properly maintained. Longevity depends on buckle wear, exposure to moisture, and intensity of use. Alligator straps, thanks to their denser structure, tend to last longer than calf. With proper maintenance (regular cleaning, air-drying after rain), you can extend lifespan to 10 years. Replacement is simple and economical.