TAG Heuer Monaco Monaco Split-Seconds Chronograph Air 1

Reference CBW218B.FT8124

About this watch

The TAG Heuer Monaco Split-Seconds Chronograph “Air” CBW218B.FT8124 was introduced in 2025 as one of four variants in the Monaco Split-Seconds concept series. The watch is housed in a square 41 mm case constructed in grade-5 titanium, combining polished and brushed surfaces. The case architecture follows the traditional Monaco layout, with the crown positioned on the left side of the case and the chronograph pushers located on the right. The front crystal is sapphire with anti-reflective treatment, matched by a sapphire caseback secured by screws. The model integrates a split-seconds (rattrapante) mechanism within the case, a configuration designed to make the complication visible from both the dial and movement sides. This reference is powered by the calibre TH81-00, a self-winding split-seconds chronograph movement developed in collaboration with Vaucher. The calibre operates at 28,800 vibrations per hour and offers a power reserve of approximately 65 hours. The movement construction places the majority of the split-seconds mechanism on the dial side, where the rattrapante clamp components, split-seconds column wheel, and chronograph brake elements are visible. The oscillating weight is mounted on the back of the movement and is partially skeletonised to ensure visibility of the bridges and split-seconds components beneath. The dial is fully openworked, exposing the chronograph architecture. The “Air” model is distinguished by blue-colored components and finishing details, including the chronograph elements, movement plates, and bridges associated with this variant. Time is displayed by central hour and minute hands, accompanied by two central chronograph hands for the chronograph seconds and split-seconds seconds. A 30-minute chronograph counter is located at 3 o’clock, and running seconds at 6 o’clock. The tachymeter and chronograph scales are printed on a transparent upper layer integrated into the dial structure. The watch is fitted with a rubber strap featuring a fabric-textured outer surface, secured by a titanium folding clasp. The strap integrates directly with the case to match the geometry of the square case shape.
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Specifications

Brand
TAG Heuer
Family
Monaco
Model
Monaco Split-Seconds Chronograph Air 1
Reference
CBW218B.FT8124
Movement
th81-00
Movement Features
  • Hours, Minutes, Small Seconds
  • Chronograph, Column wheel, Rattrapante
  • Chronometer
Case
41mm
Dial Color
Skeleton
Crystal
Sapphire
Water Resistance
30

Current Listings

[WTS] Tag Heuer Monaco Chronograph X Gulf Limited Edition 1 of 971 Full Set 2 Straps Box & Papers CAW218G.EB0393

Tag Heuer Monaco Chronograph X Gulf Limited Edition 1 of 971 Full Set 2 Straps Box & Papers CAW218G.EB0393

Tag Heuer - CAW218G.EB0393 · $11,295
This is a limited edition Tag Heuer Monaco Chronograph X Gulf Automatic, one of only 971 made worldwide. It features a titanium case and a silver/white dial with blue and orange Gulf stripes.

  • Condition: Excellent
  • Case size: 39mm
  • Material: Titanium
Posted at
Apr 7, 2026, 1:20 PM
Active
[WTS] Tag Heuer Monaco Night Driver Limited Edition🔥Preowned 2023, $7000+✈️🔥

Tag Heuer Monaco Night Driver Limited Edition🔥Preowned 2023, $7000+✈️🔥

This Tag Heuer Monaco Night Driver Limited Edition is a preowned watch from 2023, featuring the model reference CBL2181.FC6515. It comes with its original box and warranty.

  • Condition: Preowned
  • Year: 2023
  • Shipping cost (us states): 100
Posted at
Apr 5, 2026, 7:23 AM
Active
[WTS] TAG Heuer Monaco Chronograph Steel Black Tritium Dial Limited Edition 5000pcs (Unpolished)

TAG Heuer Monaco Chronograph Steel Black Tritium Dial Limited Edition 5000pcs (Unpolished)

TAG Heuer - CS2110 · $3,750
This is a TAG Heuer Monaco Chronograph reference CS2110 in black tritium dial and stainless steel case. The watch features its original chronograph functions and has been tested to be running perfectly.

  • Condition: all-original, never polished with light signs of wear and fine hairlines
  • Size: 38mm diameter
  • Year: ~1998
  • Case condition: light signs of wear and fine hairlines consistent with careful use
Posted at
Apr 4, 2026, 3:18 PM
Active
[WTS] TAG Heuer Monaco Chronograph Steel Black Tritium Dial Limited Edition 5000pcs (Unpolished)

TAG Heuer Monaco Chronograph Steel Black Tritium Dial Limited Edition 5000pcs (Unpolished)

TAG Heuer - CS2110 · $3,750
This TAG Heuer Monaco Chronograph reference CS2110 is a limited edition timepiece featuring a stainless steel case and black tritium dial. The watch has been tested and is running perfectly with its chronograph functions operating as intended.

  • Condition: all-original, never polished with light signs of wear and fine hairlines
  • Size: 38mm diameter
  • Year: ~1998
Posted at
Mar 27, 2026, 11:23 PM
Active
[WTS] Tag Heuer Monaco Chronograph X Gulf Limited Edition 1 of 971 Full Set 2 Straps Box & Papers CAW218G.EB0393

Tag Heuer Monaco Chronograph X Gulf Limited Edition 1 of 971 Full Set 2 Straps Box & Papers CAW218G.EB0393

Tag Heuer - CAW218G.EB0393 · $11,295
This is a Limited Edition Tag Heuer Monaco Chronograph X Gulf Automatic, made in only 971 pieces. It features a titanium case and comes with both white and blue straps.

  • Condition: Excellent
  • Material: Titanium
  • Year Of Production: 2025
  • Production Quantity: 971 units made
Posted at
Mar 27, 2026, 9:06 PM
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[WTS] Tag Heuer Monaco Chronograph "Dark Lord" 39mm Black DLC Titanium CBL2180 Full Set

Tag Heuer Monaco Chronograph "Dark Lord" 39mm Black DLC Titanium CBL2180 Full Set

This is a Tag Heuer Monaco Chronograph 'Dark Lord' in 39mm Black DLC Titanium, featuring a black circular brushed dial with rose gold hands and markers.

  • Condition: Excellent preowned condition with almost no signs of wear
  • Case material: Black DLC Titanium
  • Bezel material: Black DLC Titanium
  • Dial color: black
Posted at
Mar 24, 2026, 8:12 PM
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Tag Heuer Monaco - Gulf Special Edition - CBL2115.FC6494 ( new / 2024 )

Tag Heuer Monaco - Gulf Special Edition - CBL2115.FC6494 ( new / 2024 )

This is a brand new Tag Heuer Monaco Gulf Special Edition, a limited edition watch with a stainless steel case and Calibre Heuer 02 movement.

  • Condition: Brand new
  • Case size: 39mm diameter
  • Material: Stainless Steel
  • Movement: Calibre Heuer 02
Posted at
Apr 7, 2025, 3:22 PM
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NEW UNWORN 2024 Tag Heuer Monaco Chronograph Gulf Blue Steel CBL2115.FC6494

NEW UNWORN 2024 Tag Heuer Monaco Chronograph Gulf Blue Steel CBL2115.FC6494

The watch is a new and unworn Tag Heuer Monaco Chronograph Gulf, celebrating the partnership between Tag Heuer and Gulf Oil with its distinctive blue and orange color scheme. It features a stainless steel square case, brushed and polished bezel, and an attractive blue sunray-brushed dial.

  • Condition: New, unworn
  • Case size: 41mm
  • Water resistance: 100m
Posted at
Apr 1, 2025, 7:51 PM
Active