Grande Class Tourbillon

Description

CaliberEl Primero 4035Automatic chronograph movement with tourbillon16 1/2``` caliber. Diameter : 37.5 mm. Height : 7.55 mm.Lower cage bridge in shock-absorbing Zenithium + 25 jewels. 325 components.36,000 vibrations per hourPower reserve over 50 hours35 jewelsMeasures short time intervals to a 10th of a secondAutomatic winding in both directionsCentral rotor on ball bearings22-carat gold oscillating weight with "Grain d'Orge" or "Côtes de Genve" guilloche patternFunctionsHour and minutes in the centerTourbillon:·The carriage is positioned at 11 o'clock·The carriage makes 1 turn per minuteChronograph:·Center seconds-hand·30-minute counter at 3 o'clock·12-hour counter at 6 o'clockDate indication positioned around the carriageCase18-carat rose or white gold case, push-buttons and crownDiameter : 45 mmDiameter opening : 36.5 mmCurved sapphire glass with anti-reflection treatment on both sidesTransparent sapphire case backWater-resistance up to 50 metersDialSolid gold dialDeep black or silver with handmade "Grain d'orge" guilloch pattern All applied indexes and counters in solid gold Hands18-carat rose or white gold faceted handsStrapHandmade black alligator leather strap lined with silky Alzavel calfskin Buckle18-carat rose or white gold Grande Class triple folding buckle stamped with ZENITH star on the cap

Supplied by the brand to the GPHG for its entry.