Fortis Watch Terrestis Orchestra A.M. A good orchestra distinguishes itself by its love for detail. All individual parts have to be in perfect harmony with each other in order to create a perfect whole. Smooth curves and precise edges culminate in a harmonious ensemble of nostalgic elegance; a nostalgia, which is underlined by the drop shaped lugs taken from 1930s Fortis designs. Supplier Model Number 900.20.32 L.28