When TAG Heuer and Time+Tide launched the original Sundowner in 2024, all 250 watches sold out within 24 hours. Sandblasted titanium, warm rose-gold accents and a solar-powered movement made for a distinctive take on the Aquaracer. Two years later, the partnership returns with the Aquaracer Professional 300 Sundowner II — and this time, the biggest change is beneath the dial.
Rather than revisit the 40mm Professional 200 Solargraph, the team has moved to the mechanical Professional 300. The familiar grey-and-gold palette remains, but the case is larger, the water resistance is greater and the dial loses its date window. This is more than a new colourway: it is a different proposition with a recognisable family resemblance.
A familiar palette, a different platform
The sandblasted grade 2 titanium case measures 42mm across and 48mm from lug to lug, with water resistance rated to 300 metres. TAG Heuer lists the thickness as 12.13mm, while Time+Tide rounds it to 12mm. Those dimensions make it a more substantial watch than the original, and that is worth bearing in mind if the smaller Solargraph was part of the appeal. Titanium keeps the construction light, but it does not make a 42mm watch a 40mm one.
Visually, though, the connection is immediate. The muted grey case provides a restrained backdrop for the rose-gold-plated hands and applied indices. The titanium bezel now carries a grey ceramic insert with rose-gold-toned scale markings, keeping the warmth of the original without losing the purposeful character of a dive watch.
The dial makes the difference
The wave-pattern dial is the visual centrepiece. Its ridges are stamped into a brass plate, followed by a black sunray finish and transparent varnish. The result has far more depth than a flat black dial: as the light catches the surface, the texture becomes the point of interest. The coastal inspiration feels rather more convincing here than another sunset-themed colour scheme would have done.
Just as important is what has been left out. There is no date window and no cyclops magnifier, giving the wave pattern room to breathe. According to Time+Tide, the Sundowner II is the only current Aquaracer Professional 300 with a no-date display. The Time+Tide shield at 6 o’clock balances the TAG Heuer logo above, and the cleaner layout is, to our eye, one of the strongest reasons to look at this edition.
A mechanical heart
Inside is the automatic Calibre TH31-01, with COSC chronometer certification, a 4Hz frequency and an 80-hour power reserve. It answers the request for a mechanical Sundowner without pretending that the Solargraph was somehow the wrong choice. The original had its own practical appeal; the sequel is for those who want the interaction and character of a mechanical watch. There is also a small but important detail I can confirm from handling the watch: the crown has no redundant “ghost” date-setting position. The no-date approach is not just cosmetic. Details matter.
The movement sits behind a solid grade 2 titanium caseback bearing the Time+Tide logo in relief and individual limited-edition numbering. There is no display back, but the restrained finish fits the rest of the watch. The screw-down crown and 300-metre water resistance keep the underlying dive-watch credentials firmly in place.
Two versions, one small run
The Sundowner II is limited to 500 watches across two separately numbered editions. There are 450 examples on a fitted black rubber strap, priced at £4,300, and just 50 on a matching titanium three-link bracelet at £4,850. Both options have a titanium folding clasp with toolless micro-adjustment. The rubber gives the watch a more overtly sporty character; the bracelet makes the grey titanium aesthetic feel complete. With only 50 bracelet examples, that version is a particularly small part of the release.
Key specifications
| Specification | Details |
| Model | TAG Heuer Aquaracer Professional 300 × Time+Tide Sundowner II |
| References | WBP5184.FT6257 (rubber); WBP5185.BF0010 (bracelet) |
| Case | Sandblasted grade 2 titanium; 42mm diameter |
| Dimensions | 12.13mm thick (TAG Heuer); 48mm lug-to-lug (Time+Tide) |
| Lug width | 21mm |
| Bezel | Unidirectional titanium bezel; grey ceramic insert; 60-minute scale |
| Crystal | Sapphire with anti-reflective treatment; no date magnifier |
| Dial | Black sunray finish with stamped wave pattern and transparent varnish; rose-gold-plated hands and applied luminous indices |
| Caseback and crown | Solid grade 2 titanium screw-in caseback with Time+Tide logo and individual numbering; screw-down crown, listed by TAG Heuer as grade 2 titanium |
| Movement | Calibre TH31-01; automatic; COSC-certified chronometer |
| Frequency | 28,800 vibrations per hour / 4Hz |
| Power reserve | 80 hours |
| Functions | Hours, minutes and central seconds; no date |
| Water resistance | 300 metres |
| Strap / bracelet | Fitted black rubber or titanium three-link bracelet; titanium folding clasps with toolless micro-adjustment |
| Limited editions | 450 numbered pieces on rubber; 50 numbered pieces on bracelet |
| UK price | £4,300 on rubber; £4,850 on bracelet |
Our take
What makes the Sundowner II interesting is not simply the move to an automatic movement. It is the way the darker dial, warm detailing and cleaner layout work together. The original’s identity survives, but the sequel has a character of its own.
There are compromises. Anyone drawn to the first watch’s 40mm case or solar-powered convenience may still prefer that formula, and neither version of the sequel is an inexpensive purchase. For those who wanted a mechanical Sundowner, though, this feels like a thoughtfully judged response rather than a collaboration repeated for its own sake. The no-date dial is the detail that brings it together.
At the time of writing this article, the Sundowner II is available now from: shop.timeandtidewatches.co.uk
or directly from Tag Heuer: www.tagheuer.com
for £4300 on a Rubber Strap as all 50 Bracelet variants have been sold. If you want one – move quickly as judging by the previous release these will not hang around!
