Defined by its unmistakable square case measuring 39 mm in diameter and 13.8 mm thick, this Monaco is rendered in titanium with a DLC treatment and a fixed titanium bezel. The skeleton dial opens a direct view into the automatic movement beneath, accented by index hour markers and luminescent hands for legibility across conditions.
Chronograph functionality sits at the heart of this reference, delivering hour, minute, second, and date display alongside the signature stopwatch complication. A scratch-resistant sapphire crystal protects the dial, while the strap configuration keeps the square case firmly centered on the wrist.
Swiss made and listed as unisex, the CBL218B.FT6236 ships complete with its original box and papers, making it a well-documented example of one of Tag Heuer's most storied lines.