Tudor M7939G1A0NRU

Given its current median market price of around $4,050, the Black Bay 58 GMT is positioned as a mid-tier luxury sports watch with a GMT complication. Its value is driven by its classic 39mm sizing, 200m water resistance, and its modern manufacture movement, making it a compelling option for its features.

The 39mm case diameter is a key feature of the Black Bay 58 line, designed for a more vintage-inspired, versatile fit. It typically wears well on a wide range of wrist sizes, offering a more compact and comfortable alternative to many standard 41mm or 42mm GMT watches.

This model features a 39mm stainless steel case with 200m water resistance, a black dial, and a bi-directional rotating 24-hour bezel for tracking a second time zone. It comes on a strap (as indicated by the reference), includes a date complication, and is powered by an automatic movement.

The primary difference is the 39mm case size of the Black Bay 58 GMT, which is smaller than the standard 41mm Black Bay GMT models. It presents a more vintage-proportioned package while maintaining the core GMT functionality and 200m water resistance found throughout the collection.

Yes, with its robust 200m water resistance, sapphire crystal, and versatile 39mm size, it is well-suited for daily wear. The GMT function adds practicality for travel or tracking another time zone, making it a highly functional everyday sports watch.

Consider that this specific reference, M7939G1A0NRU, comes on a strap rather than a bracelet, which may affect the initial price and future versatility. As a model in production since 2024, you are likely to find new or nearly new examples, but be aware of the price range in the secondary market, which currently spans from roughly $3,222 to $4,274.

Tudor has not provided specific official nomenclature for the movement type in their materials for this reference. It is an automatic GMT movement that allows tracking of a second time zone via the 24-hour hand and the bi-directional bezel.