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Longines Conquest Heritage Year of The Snake Automatic 40 mm Stainless Steel - Limited Edition image number 0 Longines Conquest Heritage Year of The Snake Automatic 40 mm Stainless Steel - Limited Edition image number 1 Longines Conquest Heritage Year of The Snake Automatic 40 mm Stainless Steel - Limited Edition image number 2 Longines Conquest Heritage Year of The Snake Automatic 40 mm Stainless Steel - Limited Edition image number 3
Longines Conquest Heritage Year of The Snake Automatic 40 mm Stainless Steel - Limited Edition image number 0 Longines Conquest Heritage Year of The Snake Automatic 40 mm Stainless Steel - Limited Edition image number 1 Longines Conquest Heritage Year of The Snake Automatic 40 mm Stainless Steel - Limited Edition image number 2 Longines Conquest Heritage Year of The Snake Automatic 40 mm Stainless Steel - Limited Edition image number 3

In 1968, Longines launched the Ultra-Chron Diver, the first dive watch equipped with a high-frequency movement. The winged hourglass brand created the first high-frequency timekeeping device capable of measuring 1/10th of a second. In 1959, Longines developed the first high-beat movement for a wristwatch, an observatory chronometer that set new records in terms of accuracy.

The new Ultra-Chron is inspired by the aesthetic codes and professional diving features of the 1968 model. These chronometer-certified watches are powered by an exclusive Longines calibre equipped with a silicon balance-spring and resistant to magnetic fields.


  • Product Number: 450019178397
  • Model Number: L2.839.4.52.2
  • Collection: Heritage
  • Subcollection: Longines Ultra-Chron
  • Movement: Automatic
  • Dial Colour/Material: Black
  • Case Size: 43 mm
  • Case Material: Titanium
  • Bracelet: Fabric
  • Warranty: 5-year
  • Case Thickness: 14.00 mm
  • Caseback: Plain, titanium
  • Watch Crystal: Scratch-resistant sapphire crystal with several layers of anti-reflective coating on both sides
  • Clasp: Buckle
  • Calibre: L836
  • Functions: Hours, minutes, seconds
  • Water Resistance: 300 metres / 30 ATM
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SHIPPING

Enjoy free standard shipping within Canada. To ensure the satisfaction of parcel reception, all our packages require signature upon delivery. The estimated delivery time is 2 to 5 days business days. For more information, click here.

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

Maison Birks will provide an exchange or refund within 30 days of delivery for select regular-priced merchandise, 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.

Longines

Longines Ultra-Chron Carbon Automatic 43 mm Titanium and Carbon

Ultra-Chron Carbon Automatic 43 mm Titanium and Carbon
Estimated Price:
$ 6,700
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All images shown are for illustration purposes only. Actual product may vary. Birks reserves the right to change the font, size and text orientation depending on the engraving message for best result.

Please note the estimated time for our engraving services is 7 to 10 business days. Engraved items are final sale.

Once adjusted Tudor watches are final sale.

Note that in store (after sale) adjustments to your Tudor watch is available exclusively in Official Tudor Maison Birks locations.

In 1968, Longines launched the Ultra-Chron Diver, the first dive watch equipped with a high-frequency movement. The winged hourglass brand created the first high-frequency timekeeping device capable of measuring 1/10th of a second. In 1959, Longines developed the first high-beat movement for a wristwatch, an observatory chronometer that set new records in terms of accuracy.

The new Ultra-Chron is inspired by the aesthetic codes and professional diving features of the 1968 model. These chronometer-certified watches are powered by an exclusive Longines calibre equipped with a silicon balance-spring and resistant to magnetic fields.


  • Product Number: 450019178397
  • Model Number: L2.839.4.52.2
  • Collection: Heritage
  • Subcollection: Longines Ultra-Chron
  • Movement: Automatic
  • Dial Colour/Material: Black
  • Case Size: 43 mm
  • Case Material: Titanium
  • Bracelet: Fabric
  • Warranty: 5-year
  • Case Thickness: 14.00 mm
  • Caseback: Plain, titanium
  • Watch Crystal: Scratch-resistant sapphire crystal with several layers of anti-reflective coating on both sides
  • Clasp: Buckle
  • Calibre: L836
  • Functions: Hours, minutes, seconds
  • Water Resistance: 300 metres / 30 ATM
View More Details
View Fewer Details

SHIPPING

Enjoy free standard shipping within Canada. To ensure the satisfaction of parcel reception, all our packages require signature upon delivery. The estimated delivery time is 2 to 5 days business days. For more information, click here.

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

Maison Birks will provide an exchange or refund within 30 days of delivery for select regular-priced merchandise, 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.

In 1968, Longines launched the Ultra-Chron Diver, the first dive watch equipped with a high-frequency movement. The winged hourglass brand created the first high-frequency timekeeping device capable of measuring 1/10th of a second. In 1959, Longines developed the first high-beat movement for a wristwatch, an observatory chronometer that set new records in terms of accuracy.

The new Ultra-Chron is inspired by the aesthetic codes and professional diving features of the 1968 model. These chronometer-certified watches are powered by an exclusive Longines calibre equipped with a silicon balance-spring and resistant to magnetic fields.


  • Product Number: 450019178397
  • Model Number: L2.839.4.52.2
  • Collection: Heritage
  • Subcollection: Longines Ultra-Chron
  • Movement: Automatic
  • Dial Colour/Material: Black
  • Case Size: 43 mm
  • Case Material: Titanium
  • Bracelet: Fabric
  • Warranty: 5-year
  • Case Thickness: 14.00 mm
  • Caseback: Plain, titanium
  • Watch Crystal: Scratch-resistant sapphire crystal with several layers of anti-reflective coating on both sides
  • Clasp: Buckle
  • Calibre: L836
  • Functions: Hours, minutes, seconds
  • Water Resistance: 300 metres / 30 ATM
View More Details
View Fewer Details

SHIPPING

Enjoy free standard shipping within Canada. To ensure the satisfaction of parcel reception, all our packages require signature upon delivery. The estimated delivery time is 2 to 5 days business days. For more information, click here.

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

Maison Birks will provide an exchange or refund within 30 days of delivery for select regular-priced merchandise, 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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