TAG Heuer · Aquaracer Professional 300 × Time+Tide Sundowner II
The model in detail
Meet the watch
There are more waves than words on the Sundowner II’s black dial. Rose-gold-toned markings warm the grey titanium, but the biggest change is inside: the automatic TH31-01 provides an 80-hour reserve. This Aquaracer offers a useful way to discuss mechanics and limited production without promises about future collecting prices.
Our subject is WBP5185.BF0010 on a titanium bracelet. TAG Heuer specifies 50 watches for this particular configuration. That figure belongs to the bracelet version and should not be applied to every Sundowner II variant. A complete reference matters when checking exactly what the manufacturer and seller are offering.
The 42 mm case is sandblasted Grade 2 titanium. The official page gives a thickness of 12.13 mm, so a rounded “12 mm” cannot replace a fitting. The matte surface makes the design look more restrained, but the lugs, bracelet and wrist size also determine how it wears.
EnlargeThe luminous hands and markers of the Sundowner II.
© TAG Heuer · SourceDetails and limitations
TH31-01 runs at 4 Hz and is described by the manufacturer as an officially certified chronometer. The display retains hours, minutes and seconds. Removing the date window preserves the wave pattern and the symmetry of the markers. An 80-hour reserve can be useful when rotating watches, provided the movement received sufficient winding.
The rating is 300 metres, with a screw-down crown and a unidirectional bezel carrying a grey ceramic insert. Luminous hands and markers preserve the Aquaracer’s tool-watch logic. Those case specifications still require sound seals and a properly closed crown before use in water.
The official US page listed the bracelet version at $5,750 when checked, with availability stated from November 12. That is a market-specific guide, not confirmation of an unallocated example. I would choose the Sundowner II for its restrained colours and mechanical calibre first; a 50-piece limit matters only alongside a suitable fit.
