Where most GMT timepieces indicate the second time zone with an additional hand, the Montblanc 1858 GMT features a GMT indication without hands that is very intuitive and highly legible. The Montblanc 1858 GMT indicates the second time zone with a red square that moves around the outside of the dial. This red square is positioned next to a fixed black anodized aluminum bezel with a 24-hour clock. This system also indicates half hours. Other functions include a date and central seconds hand. The timepiece is housed in a 42 mm stainless steel case and comes with a black sunray dial as well as an interchangeable black rubber strap with fine adjustment system. An engraving on the case back shows the continents, oceans, and names of cities in each of the 24 time zones, offering a world time indication.
CASE
Material: Stainless Steel
Width: 42mm
Dial: Black sunray dial with rhodium-coated luminescent Arabic numerals and indexes; GMT with red aperture
Bezel Type: Fixed
Bezel Material: Steel - ceramic
Case Back: Solid, engraved with Mer de Glace - Sea of Ice - the main glacier of the Mont-Blanc Massi
Crystal: Domed sapphire crystal with anti-reflective coating
Strap: Black rubber, matte finish
Crown: Fluted in stainless steel with Montblanc emblem
Numerals: Arabic
MOVEMENT
Caliber: MB 24.33
Mechanism: Automatic, self-winding
Jewels: 25
Power Reserve: 50 Hours
Balance frequency: 28’800 vibrations per hour
Functions: Automatic movement Hours - Minutes - Seconds - Date - GMT indication by disk
Water resistance: 10 bar (100 m) bar
REF: MB129766
