The first-ever sports diving watch for Montblanc, the Montblanc 1858 Iced Sea Automatic Date features a glacier pattern dial that gives the impression of looking into the depths of a glacier. This green glacial pattern dial is inspired by the Mer de Glace - Sea of Ice - the main glacier of the Mont-Blanc Massif. Its texture was achieved using an almost-forgotten ancestral technique called gratté-boisé. The timepiece comes with a unidirectional bicolor ceramic bezel, an engraved case back, and a tapered interchangeable stainless steel bracelet with fine adjustment for precision fitting. The timepiece conforms to the ISO 6425 norm for diving watches and is water-resistant to 300 meters.

MOVEMENT

MOVEMENT TYPE
Automatic, self-winding

MOVEMENT CALIBER
MB 24.17

NUMBER OF JEWELS
26 Jewels

Flat hairspring

COMPLICATIONS

INDICATIONS
Hours, Minutes, Calendar aperture, Second in center

COMPLICATIONS
Date by disc

CASE

CASE MATERIAL
Stainless Steel

DIAL
Black glacier dial with white luminescent Arabic numerals

BEZEL

Unidirectional rotating bezel

CRYSTAL SHAPE
Domed

CRYSTAL DESCRIPTION
Domed glass box with anti-reflective coating

CRYSTAL TYPE
Sapphire

CROWN
Screwed and fluted in stainless steel with Montblanc emblem in relief

DISTANCE BETWEEN HORNS
0.79 inches

BEZEL COLOR
Black

WATER RESISTANT
30 bar (300 m) bar

CASE BACK MATERIAL
Stainless steel case with unidirectional bicolor ceramic bezel

BRACELET COLOR
Black

CASE DIAMETER
1.61 inches

BEZEL MATERIAL
Steel - Ceramic