SWISS HOROTEC 1.8mm 2mm WATCH SPRING BARS MADE TO FIT ROLEX SEIKO DIVE MARATHON
Numbers 1, 1a, 2, 3, 4 are made from the finest 316L stainless steel and No 3 in 22mm are made from Nickel Silver. These listed are to fit 19mm (1a) & 20 mm lug sizes. All the detailed specifications you should need are listed below.