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The Monaco V4 is an incredible achievement which took the TAG Heuer R&D teams five years of relentless effort to turn into a commercial reality.
The patented belt-driven transmission is a high-yield relay of five notched micro drivebelts whose tension is controlled by two turnbuckles.
A second patent was granted for the innovative linear mass, replacing the classic oscillating mass. Mounted on the world’s smallest ball bearings, the 12g tungsten ingot moves up and down between two pairs of V-shaped barrels (hence the name V4).
The barrels are angled at +/- 13 degrees, like the cylinders of a high-performance racing engine.
7 fine-brushed bridges coated with black ruthenium with Côtes de Genève and haute horlogerie hand-finishings
Escapement and belt-driven transmission visible from the front
Solid rose gold hand-applied faceted indexes
Fine-brushed solid rose gold minute and hour hands with white luminescent markers
Solid rose gold small second hand at 4 o'clock
White V4 engraving
White TAG Heuer logo engraved at 10 o'clock
Bi-material case: polished solid rose gold and fine-brushed ceramic case
Case diameter: 41 mm
Beveled sapphire crystal glass with double-sided antireflective treatment to ensure the best readability
Sapphire case back in 3 sections
Solid polished rose gold crown at 3 o’clock
Water resistance: 50 meters
Hand-sewn anthracite alligator strap with soft-touch effect
Titanium folding buckle engraved with V4 and with safety push-buttons