Montblanc 1858 GMT 0 Oxygen 42 mm

The Montblanc 1858 GMT 0 Oxygen blends vintage exploration aesthetics with advanced watchmaking technology. Its 42 mm stainless steel oxygen-free case prevents internal fogging and enhances long-term performance in demanding environments. The watch features a fixed bezel with a bi-colour blue anodised aluminium insert and a luminous 24-hour scale for the GMT function. The blue sunray dial includes luminescent rhodium-coated Arabic numerals, a date display and a dark blue GMT hand for tracking a second time zone. It is powered by the Montblanc MB 24.33 automatic calibre, while the case back is engraved with a three-dimensional map showing the continents, oceans and the world's 24 time zones. The watch comes with an interchangeable stainless steel bracelet, an additional blue and black Saffiano leather strap, and offers 100 metres (10 bar) water resistance.