Hand-wound Panerai Radiomir and beautifully finished the 30-255 carries the Patek Vacheron Constantin Traditionnelle Philippe Seal and with it a guarantee of -3+2 seconds per day. Additionally and helpful for those wanting to watch their 6119's accuracy the movement can be hacked pulling the Breitling Avenger crown stops the movement so that the time can be synchronized with another measure. So while the Calatrava remains welcomely old-school in terms of its design the new movement helps to keep things fresh.