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1858 Iced Sea 0 Oxygen Deep Automatic 43 mm Titanium image number 0 null image number 1 null image number 2 null image number 3 null image number 4 null image number 5
1858 Iced Sea 0 Oxygen Deep Automatic 43 mm Titanium image number 0 null image number 1 null image number 2 null image number 3 null image number 4 null image number 5

After having strived for the greatest heights, Montblanc explores the marine universe at 4810 meters below sea level with the Montblanc Iced Sea 0 Oxygen Deep 4810. The glacier 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. Housed in a 43 mm titanium case totally devoid of oxygen with a shield protecting the screw-down crown, this diving watch comes with a case back adorned with a 3D engraving of the view divers see when diving underneath the ice. The timepiece is powered by Montblanc’s Manufacture, COSC-certified, automatic MB 29.29 movement, with approx. five days of power reserve and conforms to the ISO 6425 norm for scuba diving. It is water-resistant to 4810 meters.


  • Product Number: 450018591227
  • Model Number: 133268
  • Collection: 1858
  • Subcollection: Iced Sea
  • Movement: Automatic
  • Dial Colour/Material: Blue
  • Case Size: 43
  • Case Material: Titanium
  • Bracelet: Rubber
  • Complication: Date
  • Warranty: 2 year warranty
  • Case Thickness: 19.30 mm
  • Caseback: Titanium
  • Bezel: Unidirectional rotating
  • Watch Crystal: Domed sapphire crystal with anti-reflective coating
  • Clasp: Folding Clasp
  • Calibre: MB 29.29
  • Power Reserve: 120 hours
  • Functions: Hours, minutes, seconds, date
  • Water Resistance: 4810 metres
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EXTENDED HOLIDAY RETURN POLICY

For all regular-priced merchandise purchased online at MaisonBirks.com or in a Maison Birks or Birks Royalmount store from December 1st - 13th, 2025, returns and exchanges will be accepted until January 14th, 2026.

RETURNS

All watches purchased on MaisonBirks.com can only be returned or exchanged by mail within 30 days of delivery, provided merchandise has not been worn, altered, engraved, or special-ordered. All claims, returns, battery replacement, or warranty service must be accompanied by proof of purchase, original packaging and warranty materials. All returns are subject to a quality inspection to ensure the merchandise meets our return policy criteria. All merchandise purchased with cryptocurrency is final sale. For more information, click here.

Montblanc

Montblanc 1858 Iced Sea 0 Oxygen Deep Automatic 43 mm Titanium

1858 Iced Sea 0 Oxygen Deep Automatic 43 mm Titanium
Estimated Price:
$ 12,100
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After having strived for the greatest heights, Montblanc explores the marine universe at 4810 meters below sea level with the Montblanc Iced Sea 0 Oxygen Deep 4810. The glacier 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. Housed in a 43 mm titanium case totally devoid of oxygen with a shield protecting the screw-down crown, this diving watch comes with a case back adorned with a 3D engraving of the view divers see when diving underneath the ice. The timepiece is powered by Montblanc’s Manufacture, COSC-certified, automatic MB 29.29 movement, with approx. five days of power reserve and conforms to the ISO 6425 norm for scuba diving. It is water-resistant to 4810 meters.


  • Product Number: 450018591227
  • Model Number: 133268
  • Collection: 1858
  • Subcollection: Iced Sea
  • Movement: Automatic
  • Dial Colour/Material: Blue
  • Case Size: 43
  • Case Material: Titanium
  • Bracelet: Rubber
  • Complication: Date
  • Warranty: 2 year warranty
  • Case Thickness: 19.30 mm
  • Caseback: Titanium
  • Bezel: Unidirectional rotating
  • Watch Crystal: Domed sapphire crystal with anti-reflective coating
  • Clasp: Folding Clasp
  • Calibre: MB 29.29
  • Power Reserve: 120 hours
  • Functions: Hours, minutes, seconds, date
  • Water Resistance: 4810 metres
View More Details
View Fewer Details

EXTENDED HOLIDAY RETURN POLICY

For all regular-priced merchandise purchased online at MaisonBirks.com or in a Maison Birks or Birks Royalmount store from December 1st - 13th, 2025, returns and exchanges will be accepted until January 14th, 2026.

RETURNS

All watches purchased on MaisonBirks.com can only be returned or exchanged by mail within 30 days of delivery, provided merchandise has not been worn, altered, engraved, or special-ordered. All claims, returns, battery replacement, or warranty service must be accompanied by proof of purchase, original packaging and warranty materials. All returns are subject to a quality inspection to ensure the merchandise meets our return policy criteria. All merchandise purchased with cryptocurrency is final sale. For more information, click here.

After having strived for the greatest heights, Montblanc explores the marine universe at 4810 meters below sea level with the Montblanc Iced Sea 0 Oxygen Deep 4810. The glacier 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. Housed in a 43 mm titanium case totally devoid of oxygen with a shield protecting the screw-down crown, this diving watch comes with a case back adorned with a 3D engraving of the view divers see when diving underneath the ice. The timepiece is powered by Montblanc’s Manufacture, COSC-certified, automatic MB 29.29 movement, with approx. five days of power reserve and conforms to the ISO 6425 norm for scuba diving. It is water-resistant to 4810 meters.


  • Product Number: 450018591227
  • Model Number: 133268
  • Collection: 1858
  • Subcollection: Iced Sea
  • Movement: Automatic
  • Dial Colour/Material: Blue
  • Case Size: 43
  • Case Material: Titanium
  • Bracelet: Rubber
  • Complication: Date
  • Warranty: 2 year warranty
  • Case Thickness: 19.30 mm
  • Caseback: Titanium
  • Bezel: Unidirectional rotating
  • Watch Crystal: Domed sapphire crystal with anti-reflective coating
  • Clasp: Folding Clasp
  • Calibre: MB 29.29
  • Power Reserve: 120 hours
  • Functions: Hours, minutes, seconds, date
  • Water Resistance: 4810 metres
View More Details
View Fewer Details

EXTENDED HOLIDAY RETURN POLICY

For all regular-priced merchandise purchased online at MaisonBirks.com or in a Maison Birks or Birks Royalmount store from December 1st - 13th, 2025, returns and exchanges will be accepted until January 14th, 2026.

RETURNS

All watches purchased on MaisonBirks.com can only be returned or exchanged by mail within 30 days of delivery, provided merchandise has not been worn, altered, engraved, or special-ordered. All claims, returns, battery replacement, or warranty service must be accompanied by proof of purchase, original packaging and warranty materials. All returns are subject to a quality inspection to ensure the merchandise meets our return policy criteria. All merchandise purchased with cryptocurrency is final sale. For more information, click here.

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