EXCELLENCE OF DETAIL
SPECIFICATIONS
As a sign of our commitment to excellence, the first model in the Grand Lac collection has received the prestigious certification from the Contrôle Officiel Suisse des Chronomètres (COSC).
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This recognition attests to the exceptional quality of the Grand Lac. We apply this rigorous requirement to all the materials and components of our model. Each part is meticulously checked individually to ensure that it meets our strict standards.
PROTECTION AGAINST
MAGNETIC FIELDS
To guarantee optimum operating safety, the Grand Lac uses a soft iron cage designed to protect its mechanism from intense magnetic fields.
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With a resistance of 50,000 A/m, well above the Swiss standard of 4,800 A/m, this technology ensures reliability and exceptional performance.
THE EXCELLENCE
GRADE 5 TITANIUM
The case and bracelet of the Grand Lac are made from grade 5 titanium.
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This exceptional material offers outstanding strength, incomparable lightness, excellent corrosion resistance and optimal hypoallergenicity.
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The perfect combination of robustness and comfort for a watch that meets every requirement.
DESIGNED TO PREVENT
DAMAGE DURING DECOMPRESSION
To guarantee safe saturation diving, the Grand Lac is equipped with a helium valve.
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Placed on the left flank, this cutting-edge technology allows helium trapped in the case to escape, preserving the integrity of the watch even in the extreme conditions of deep diving.
OPTIMUM LEGIBILITY
IN ALL CIRCUMSTANCES
Grand Lac uses pigments with the highest grade of Swiss Super-Luminova, whose intense blue glow is suitable for underwater conditions.
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Using the brand-new Swiss Super-Luminova Grade X1, luminosity is improved by almost 60% over the standard grade after 120 minutes in the dark.
SELF-WINDING CALIBER AND
DATE INDICATOR IN THE HIGHEST GRADE
CALIBER MANUFACTURED
BY SELLITA
SW300-1
FREQUENCY
28'800 A/h (4 Hz)
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RUNING TIME
56 Hours
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MIDDLE RATE
​-4 / +6 sd
SPECIAL FEATURES
COSC-certified mechanism
bidirectional winding rotor
26 jewels
blued screws
customized oscillating weight
