Technical Archive

Montblanc
1858 117840— lug 20mm

Cinturino 20mm per Montblanc 1858 117840. Pelle vegetale, NATO, gomma. Scopri alligatore e vitello su Milano Straps.

1858 Geosphere Limited Edition 1858 Bronze / Black / Bund — orologio

Artisanal Note

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

Technical Specifications

Montblanc 117840
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

117840

Movement

Montblanc caliber MB 29.25 Hours, Minutes, Additional 12 Hour Hand (adjustable), Day / Night Indication, World Time | Date

The Heritage

The Montblanc 1858 reference 117840 is powered by the MB 29.25 caliber with hour, minute, and adjustable hour hand seconds functions, and day/night indication. The watch offers world time function with date display. The movement features complications dedicated to the control of different time zones through the additional twelve-hour hand.

Compatible Straps

Selected for 20mm lug width