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 blue 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.

Ident No. MB129369

MOVEMENT TYPE Automatic, self-winding

MOVEMENT CALIBER MB 24.17

NUMBER OF JEWELS 26 Jewels

Flat hairspring

INDICATIONS Hours, Minutes, Calendar aperture, Second in center

COMPLICATIONS Date by disc

CASE MATERIAL Stainless Steel

DIAL Blue 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

BEZEL COLOR Blue

WATER RESISTANT 30 bar (300 m) bar 

CASE BACK MATERIAL Stainless steel case with unidirectional bicolor ceramic bezel

BRACELET COLOR Steel

CASE DIAMETER 1.61 inches

BEZEL MATERIAL Steel - Ceramic