Cazador

Vacheron Constantin · Family: Overseas

Vacheron Constantin Overseas Dual Time 7900V/110A-B546

The Vacheron Constantin Overseas Dual Time 7900V/110A-B546 is the steel, black-dial execution of the Geneva manufacture's sport line with a second-time-zone function. It runs the in-house Calibre 5110 DT, carrying the Hallmark of Geneva certification and roughly 60 hours of power reserve. Cazador has no verified price observations yet. Its standout detail: a tool-free interchangeable strap system, with up to three options included in the same box.

Specifications

Case diameter
41 mm x 12.8 mm thick
Case material
Stainless steel, polished and brushed
Water resistance
150 m
Antimagnetic protection
Soft-iron inner cage
Crown
Screw-down, sets time, winds, and adjusts second time zone
Pusher
Screw-lock at 4 o'clock, sets date
Dial
Translucent black lacquer, sunburst satin base
Movement
Calibre 5110 DT, in-house, automatic, Hallmark of Geneva certified
Power reserve
~60 hours
Functions
Hours, minutes, seconds, date, second time zone, day/night indicator
Bracelet/strap
Interchangeable system: steel bracelet, rubber strap and alligator leather strap

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History

The Overseas is Vacheron Constantin's sport line, conceived as a rugged, versatile travel watch within the catalog of a manufacture traditionally associated with fine dress watchmaking. In 2016, the collection underwent a comprehensive redesign that introduced, among other changes, a tool-free interchangeable strap system common to the whole line.

Within that redesign, the Dual Time version shrank its case from the 42mm of earlier generations to the current 41mm, retained in reference 7900V, with a 12.8mm thickness that incorporates antimagnetic protection via a soft-iron inner cage — unusual for a sport watch in this category.

This specific execution, with a translucent black lacquer dial over a sunburst satin base, documented within the reference's catalog since 2019, pairs 18k white gold hour markers with a red-tipped hand for reference time, a day/night indicator synchronized with local time at 9 o'clock, and a date counter at 6.

Inside is the Calibre 5110 DT, an in-house automatic movement with a 22k gold oscillating weight that carries the Hallmark of Geneva — the quality seal requiring, among other criteria, that the movement be manufactured, assembled and finished entirely within the canton of Geneva — delivering roughly 60 hours of power reserve and functions covering central hours, minutes and seconds synchronized to the second time zone, plus date and day/night indication.

The reference ships with an interchangeable strap system that includes, as standard, a steel bracelet with a triple-blade folding clasp and comfort-adjustment system, plus a black rubber strap and a black alligator leather strap, each with its own triple-blade clasp for tool-free swapping.

Frequently asked questions

What is the Hallmark of Geneva?

It's a quality seal certifying that the movement was manufactured, assembled and finished entirely within the canton of Geneva, meeting finishing and reliability criteria set by an independent body.

What's the difference between the current Overseas Dual Time and earlier generations?

The 2016 redesign shrank the Dual Time's diameter from 42 to 41mm and introduced the tool-free interchangeable strap system, common across the Overseas line ever since.

How much does the Vacheron Constantin Overseas Dual Time 7900V/110A-B546 cost?

Cazador has no verified price observations for this reference yet and does not publish estimates without its own data.

How much power reserve does the Calibre 5110 DT have?

Roughly 60 hours, with a 22k gold oscillating weight.

How many straps come with reference 7900V/110A-B546?

It ships with a three-option system: steel bracelet, black rubber strap and black alligator leather strap, each tool-free interchangeable.

Is this Overseas water resistant?

Yes, up to 150 meters, higher than many dress GMT watches and consistent with the Overseas line's rugged travel-watch vocation.

Does it have antimagnetic protection?

Yes, it features a soft-iron inner cage protecting the movement, an unusual detail for an integrated sport watch in this category.

Related references