Cartier Ballon Bleu 42 mm W69012Z4 Professionally restored

Cartier Ballon Bleu 42mm – W69012Z4 – 2016

A classic Cartier Ballon Bleu combining the unmistakable rounded case design, Roman numeral dial and distinctive crown architecture with a beautifully finished automatic movement.

Reference: W69012Z4
Year: 2016
Serial Number: 3001353558TX
Case: Stainless steel
Diameter: 42 mm
Movement: Automatic Cartier Calibre 049
Dial: Silver
Crystal: Sapphire crystal
Bracelet: Stainless steel

This watch has undergone a comprehensive technical service and restoration in our workshop.

The Cartier Calibre 049 automatic movement was disassembled, inspected, cleaned, lubricated and regulated. During the restoration, selected worn internal movement components were renewed, including components within the automatic winding system, wheel train, winding and setting mechanism and escapement system.

Restoration work performed:

• Complete movement inspection and service
• Selected worn internal movement components replaced
• Date wheel replaced
• Crown replaced
• Movement cleaned, lubricated and regulated
• Case and external components professionally refinished
• Caseback inscriptions professionally restored
• Final functional inspection completed

Timegrapher results after service:

• Rate: +4 seconds/day
• Amplitude: 322°
• Beat Error: 0.1 ms
• Frequency: 28,800 vibrations/hour

The excellent amplitude and low beat error demonstrate strong and stable mechanical performance following the completed service.

The watch has been carefully restored with the objective of preserving the character and appearance of the Cartier Ballon Bleu while returning the movement to reliable everyday operating condition.

A refined and elegant Cartier with a fully documented workshop restoration — ready to be worn and enjoyed.