Technical Archive

Montblanc
4810 Collection 115071— lug 20mm

Montblanc 4810 Collection 115071: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

4810 Orbis Terrarum

Artisanal Note

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

Technical Specifications

Montblanc 115071
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

115071

Movement

Montblanc caliber MB 29.20 Hours, Minutes, Seconds, Day / Night Indication, World Time | Date

The Heritage

The Montblanc 4810 Orbis Terrarum ref. 115071 features a 43mm stainless steel case with a 20mm lug width. It houses the automatic Montblanc MB 29.20 caliber offering hours, minutes, seconds, day/night indicator, Worldtime function, and date display. Water resistant to 30 meters, this model combines sport and dress watch proportions with a integrated metal bracelet that forms part of the overall design.

FAQ

What is the lug width of the Montblanc 4810 Collection 115071?

The Montblanc 4810 Collection 115071 features a lug width of precisely 20mm. This measurement refers to the free space between the watch case lugs. To verify this specification accurately, place a digital calliper between the two horizontal lugs at each end of the case. Precise measurement is essential to order a compatible strap and ensure correct installation without risk of damage to the case or lugs.

What is the best strap for the Montblanc 4810 Collection 115071?

There is no single 'best' strap; selection depends on intended use and personal aesthetic preference. For formal and daily wear, a strap in alligator or Italian calf leather, vegetable-tanned, offers discrete elegance and extended wearing comfort. For a more sporty and durable approach, a NATO canvas strap or vulcanised rubber strap provides practicality and resilience. The stainless steel case pairs naturally with dark tones (burgundy, cognac, black) or neutral shades (slate grey, dark grey) that emphasise the architectural geometry of the case.

How do I change the strap on the Montblanc 4810 Collection 115071?

The Montblanc 4810 Collection 115071 allows strap replacement by removing the spring bars that connect the strap to the case. You will need a spring bar remover tool, a specialised instrument that lifts the bar from its housing. Position the tool beneath the bar, apply gentle upward pressure, and remove the old strap. Insert the new strap, ensuring the bars penetrate fully and both sides are secured symmetrically. If you lack the appropriate tool, contact an authorised Montblanc service centre or a specialist watchmaker.

Which aftermarket straps are compatible with the Montblanc 4810 Collection 115071?

Any strap with a 20mm lug width is compatible with the Montblanc 4810 Collection 115071, regardless of material (leather, fabric, rubber) or manufacturer. It is essential to verify the 20mm specification before ordering. High-quality artisanal straps, crafted with Italian leather and traditional vegetable tanning, maintain the luxury aesthetic of the watch. NATO and rubber straps offer functional versatility. Ensure the strap thickness is proportionate to the 20mm lug width to avoid visual misalignment at the lugs.

What is the average lifespan of a leather strap for the Montblanc 4810 Collection 115071?

A quality leather strap, crafted from vegetable-tanned Italian or European leather of excellence, retains functional characteristics for 3 to 5 years of regular wear (worn 5-6 days weekly). Longevity is influenced by variables including: frequency of use, exposure to humidity and heat, and preventive maintenance and care. A strap subject to excessive perspiration or regular water immersion deteriorates more rapidly. The natural patina of vegetable-tanned leather becomes increasingly pronounced over time, an aesthetic aspect many collectors appreciate. After 4-5 years of regular wear, strap replacement is necessary for structural safety of the spring bars.