Gold case, gold dial, gold bracelet, and a map of the earth in the middle of it. This is the Octa UTC in the most complete form it was offered, everything in 18K 6N gold except the whitened guilloche silver of the dial ground, the sapphire disc carrying the world map at 7:30, and the blued steel of the hands. It was catalogued at both 38 mm and 40 mm throughout the Classique collection's run, which lasted from 2011 until 2018. The hours and minutes run off center, with the small seconds at 4:30, a large date, the reserve indication at 9, and a winter and summer hour setting. Bracelet examples were the least ordered of the six configurations the model was offered in, and none of them has been available since 2018.
There is something faintly contradictory about a world timer on a gold bracelet, and it is worth naming rather than ignoring. The function is about being elsewhere: the map exists so that a wearer can read the hour in a city they are not in, which implies travel, which implies a watch that gets handled by other people, put through scanners and knocked against things. A matching gold bracelet is the opposite instinct. It makes the watch heavier, considerably more conspicuous, and a good deal more troublesome to own away from home. What resolves the contradiction is that almost nobody buys a world timer in order to travel with it. They buy it because the display is interesting and because the idea of simultaneous time is appealing, and on those terms a gold bracelet is entirely consistent. This is a watch about the world rather than a watch for moving through it, and the configuration is honest about which of the two it is. The gold also does something the steel-and-rubber idiom of most travel watches cannot, which is to make the map read as an object of contemplation rather than as an instrument face. Whether that is what anybody wants from a world timer is a separate question, and the small number of bracelet examples sold suggests most buyers did not.
Reading it is simpler than it looks and the sequence matters. The fixed ring around the earth disc carries twenty-four divisions, one for each hour. The disc itself carries the continents. Find the place you want on the map, read the hour standing against it on the ring, and that figure is the local time in that place, subject only to the seasonal setting. What you are not doing is calculating an offset from your own time, which is what a second time zone watch requires and what most people get wrong. The display gives absolute readings for every zone at once rather than a relationship between two of them. The seasonal indicator then handles the part a fixed ring cannot know, since much of the world shifts its clocks twice a year and does not do so on common dates. In practice this makes the watch faster to use than a dual time and slower to learn, since the reading requires knowing roughly where a city sits on a map rather than remembering a number of hours. Beneath all of it the calibre 1300.3 sits in 18K rose gold at 5.80 mm, running 21,600 alternations per hour on a free sprung balance with four inertia weights, with a single barrel giving about 160 hours.
The Octa began in 2001 with a date and a power reserve, and it ended in 2020 with a world map. That arc is worth laying out because it is unusually legible. The Reserve de Marche established the platform and made the argument for a five-day automatic. The Lune added the moon and proved that complications could be modular. The Divine combined a moon and a large date. The Calendrier brought an annual calendar and the Chronographe a flyback. The Jour/Nuit came and went inside the brass period and took its indication with it. The Sport took the whole architecture into aluminum and put it on a rubber-inset case. Then the UTC arrived in 2011 as the last function added to the family, ran through the Classique collection and the Black Label tier, and was closed with a twenty-piece farewell series nine years later. Six complications, two movement generations, one barrel architecture throughout. Very few families in modern watchmaking have that shape, because very few are built on a single calibre from the outset and fewer still stay on it for two decades. The usual pattern is a movement per model and a family defined by styling. Here it is the reverse, and the dials are the only place the models actually differ.
A gold bracelet is the part of this watch that cannot be replaced, so establish it first. Confirm the link count, ask directly whether removed links came with the watch, and understand that matching 6N links from a seven-year production run are not obtainable. Work along the links checking for stretch at the pins, which shows as play when the bracelet is held out flat, and look at the outer edges for the softening that follows polishing. Test the clasp under load rather than merely opening and shutting it. On the dial, look into the sapphire disc for rim chipping and for gaps in the painted continents, and rotate the earth a full turn to confirm it holds position. Work the seasonal indicator through both of its settings. Weight is worth noting as well, since a gold bracelet on a 40 mm case makes this the heaviest UTC by a wide margin and it will not suit everybody. Then run the date across midnight with both of its discs moving together, and let the reserve at 9 descend its whole scale across several days.