The sporty exclusiveness of the „Ocean One GMT BLACK-RED Ceramic" makes it stand out from other diver watches. Its solid design guarantees highest resiliance as well as an outstanding quality.
Within the large genre of sports diver watches the „Ocean One GMT BLACK-RED Ceramic" is one of the few examples in its price range which demonstrates such an excellent cost-performance ratio.
Up to this point I have read reviews in other forums of excellent accuracy out of the Sellita SW330-1 movement. Over a week of continuous wear (ie. not taking the watch off at all), mine runs from -14 seconds per day to +11 seconds per day. The AVERAGE turned out to be around +4 seconds per day. I don't know much about mechanical watches, but I would have thought the Sellita SW330-1 elabore movement could/should do better than this wide variance over a week. It means on any given day I don't know if I'm ahead or behind. The movement has these specs: Nickel balance wheel, adjusted in 4 positions, average rate of +/-5 seconds/day, (my note: is that every day should average +5spd or over a period of a week/month should average +5spd) maximum deviation of 20 seconds/day in all positions, isochronism of +/-15 seconds/day. So it would seem I'm within the average seconds per day. if it's over several days, but if it's supposed to average +5spd every day, then it is well out.