Marine Hora Mundi 5555
5555BH/YS/9WV
- Movement 77F1
- Diameter 43.9 mm
- Shape Round
- Material 18K Breguet gold
- Number of components 384
- Winding Automatic
Breguet unveils the Marine Hora Mundi 5555, a limited edition of 50 pieces paying tribute to craftsmanship through a two-level dial.
Offered for the first time in Breguet gold, this Hora Mundi 5555 features a new dial decorated with phosphorescent enamel, the subject of a patent application. Its dial is composed of two superimposed levels, one guilloché and the other in sapphire, inspired by NASA’s “Black Marble”. Powered by the 77F1 calibre with pre-programmable instant-jump dual time zone, date and day/night indication, it allows the wearer to switch from one time zone to another at the touch of a button, without interrupting the running of the watch.
Timepiece Architecture
Movement 77F1
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Balance wheel
Breguet
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Power reserve
55 hours
-
Thickness
6 mm
-
Frequency
4 Hz
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Width
36 mm
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Number of components
384
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Winding
Automatic
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Balance spring
Flat silicon balance spring
Seconds display
The seconds display makes it possible to follow the passage of time with precision. Depending on the construction of the movement, it may take the form of a central seconds hand or an off-centred small seconds display, integrated into the architecture of the dial.
Calendar
The calendar displays the date on the dial, generally by aperture, hand or disc. Simple in appearance, this indication requires precise integration both into the movement and into the balance of the dial.
Second time zone
The second time zone makes it possible to display the time in two different places simultaneously. This complication makes it easier to read time while travelling, while preserving a clear indication of the reference time.
Bevelling
Bevelling consists in chamfering and then polishing the edges of the movement components. This finish highlights the contours of the parts, catches the light and reveals the precision of the work devoted to the smallest details.
Straight stripes
Straight stripes are a decorative finish formed of regular parallel bands on the movement components. They structure the surface, soften reflections and highlight the geometry of the bridges.
Grand Feu enamelling
Grand Feu enamelling consists in applying enamel and firing it at very high temperatures until a stable, luminous surface is obtained. This expertise demands exceptional mastery, as each firing can either reveal the dial or permanently compromise it.
Guilloché
Engine-turning engraves regular patterns into the material using a hand-operated lathe. At Breguet, this expertise structures the dial, catches the light and reinforces the legibility of the indications.
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