Tiffany Blue is the proprietary Pantone colour that defines Tiffany & Co.'s box, designated PMS 1837 after the firm's 1837 founding and not sold in standard Pantone swatch books. The colour trademark was first registered in 1998. In watches the name attaches to light, greenish-blue dials, and there is an important distinction to make: genuine Tiffany Blue is cooler and greener than turquoise or aquamarine, so plenty of dials collectors call Tiffany blue are really turquoise. The shade matters because it changes how a watch reads in the metal.
The trend's spark was the Patek Philippe and Tiffany & Co. Nautilus 5711/1A-018: a 40mm steel case, calibre 26-330 S C, limited to 170 pieces at roughly £40,000 retail equivalent. One example sold at Phillips for around £5 million. Lower down, the Rolex Oyster Perpetual 124300 turquoise dial (calibre 3230, 70-hour reserve, smooth bezel) was discontinued around 2022 and now trades secondhand near £20,500 to £22,500. The Tudor Black Bay Chrono Flamingo Blue (ref M79360N-0024, 41mm, 200m, column-wheel chronograph) is the sane entry point at about £4,400 retail, drifting to £7,100 to £9,700 used. The 2026 Tiffany Timer sits at the top: 40mm platinum, an El Primero 400 movement, and a dial built from eight layers of matte varnish under fifteen of lacquer, limited to 60 pieces at roughly £41,000.
Buying advice starts with pinning down the tone. Patek's and Tiffany's own watches carry true greenish Tiffany Blue, while the Rolex 124300 and Tudor Flamingo Blue lean towards turquoise aquamarine. Pre-owned, check that the lacquer has not faded under sunlight and that there are no hairline cracks in the dial surface. This is a colour that gets noticed and does not pair with everything, so it works best balanced by a plain steel bracelet and neutral straps. Buy it because you genuinely enjoy the shade, not as a speculative flip.
One accessible footnote: the Swatch MoonSwatch Mission to Uranus, in a plastic case around £230, is the cheapest way to live with this colour feel, and collectors nickname it the Tiffany Blue MoonSwatch too. That span is the point. A single dial colour stretches from a few hundred pounds to several million, an unusually wide family built around one hue.