The TUDOR Black Bay GMT is made of the right stuff. First off, it sports an incredibly useful multiple time-zone complication – also known as a GMT function – that establishes local time without losing sight of the time in two other time zones. Recognisable by its rotatable bezel, which borrows its deep blue and burgundy colour scheme from other models in the Black Bay line, but in a matte version, the Black Bay GMT is also a nod to the early days of this high-flying aesthetic.
Now TUDOR has added the option of an all-new opaline dial that perfectly complements the iconic colour scheme of the Black Bay GMT. Opaline isn’t quite white, instead there’s a slight silvery hint to the dial. Through a galvanic process, a matte white-grey finish is applied to the dial, and the marker surrounds are darkened to create a noticeable contrast. Beyond being reminiscent of the mid-century boom in commercial aviation, the charming opaline dial is highly legible.
Additional time zones are indicated by a red “Snowflake” GMT hand, TUDOR's aesthetic hallmark, which rotates around the dial in 24 hours, as well as a bidirectional rotatable bezel that is also calibrated for 24 hours. The twelve daylight hours are printed on the burgundy section and the night-time hours on the blue.
With a steel case, 41mm in diameter, the Black Bay GMT model is waterproof to 200 metres (660 ft) and designed to withstand the elements. Its winding crown tube is in satin-brushed steel, new for the Black Bay line and aesthetically in keeping with the case and winding crown. Its contrasting opaline dial means that it is legible in all conditions, including night-time, thanks to its luminescent hour markers.
The iconic Black Bay GMT model is also available in a S&G (Steel & Gold) version, featuring warm colours and a nostalgic touch. Recognisable by its 24-hour graduated rotating bezel with two colours, representing day and night, the Black Bay GMT S&G also gives a subtle aesthetic nod to the history of this watchmaking function.
On the Black Bay GMT, the reference time is indicated by an angular "Snowflake" hand, an aesthetic hallmark of TUDOR, which completes a lap of the dial every 24 hours. Local time is indicated by another, shorter "Snowflake" hand set by a jumping hour, which can be moved either backwards or forwards. The date, displayed through an aperture positioned at 3 o'clock, is connected to the local time hand so that when setting the time and passing midnight in retrograde, it instantly jumps to the previous day. A very practical and technical detail for the user. The 24-hour graduated bidirectional rotating bezel and "24-hour" hand mean you can also keep track of a third time zone. On the anodised aluminium disc of the S&G models, the graduations for the twelve daylight hours are gold-coloured on the brown section with the night-time hours on the black section.
The Manufacture Calibre MT5652 was designed by TUDOR specifically for the Black Bay GMT model, bringing a useful function to the line of TUDOR Manufacture Calibres.
The Black Bay GMT comes with a choice of a riveted steel or steel and gold bracelet, depending on the model, with polished and satin finish. It is also available with a “Terra di Siena” brown leather strap with folding clasp and safety catch, or a black fabric strap with a burgundy or beige band, complimenting the model’s bezel. Made using the Jacquard technique, a traditional method achieved by a hundred-year-old family business from the St-Etienne region of France, the fabric strap is one of TUDOR’s signature features.
The Black Bay GMT features a 41 mm satin-brushed steel case, waterproof to 200 metres (660 ft). Luminescent hour markers set against the black dial ensure legibility at night-time — and in all conditions. The dial features a GMT mention at 6 o’clock.