Tudor Black by One

TUDOR Black by One watch, ref. 79540, serial no. Q3945XX.
In stainless steel. Black dial that retains some of Tudor’s most recognizable visual cues: luminescent geometric hour markers, a triangle at 12 o’clock, and the characteristic “Snowflake” hands, particularly visible on the hour hand—a design closely associated with the brand’s sports watches since the late 1960s. Polished stainless steel bezel. The crystal is domed sapphire; the crown is screw-down and features the Tudor rose in relief, while the watch is water-resistant to 150 meters. Link bracelet with a folding clasp. Self-winding mechanical movement, Caliber T600. Power reserve of approx. 38 hours.
Measurements: 41 mm (case diameter).

The TUDOR Black Bay 41, ref. 79540, is one of the most understated and versatile interpretations in the Black Bay family, as it dispenses with the rotating bezel characteristic of diving models in favor of a smooth, polished steel bezel, achieving a cleaner, more urban aesthetic.

In the watch descriptions, when it states “it works,” it means the watch is functioning at the time of listing. Since collector’s watches typically have delicate and complex mechanisms, the buyer is responsible for any general servicing, inspection, battery replacement, adjustment, or repair that may be necessary. We do not guarantee the perfect functioning of any watch. Nor do we guarantee their water resistance, regardless of what the manufacturer or model specifies. All photographs of our watches are original and have been taken by our photographers; in other words, we do not use stock photography, and therefore the photographs are considered part of the listing.