It is very long at 24 Inches or 600mm. There are some hallmarks with scales , 925 and makers mark (hard to read).The best stars and bars chain you will ever see. Many thanks and good luck. The item "SOLID SILVER DOUBLE ALBERT POCKET WATCH CHAIN NECKLACE 24 Inch 600mm 61 Grams" is in sale since Thursday, June 18, 2020. This item is in the category "Antiques\Silver\Solid Silver\Pocket Watches/Chains/Fobs". The seller is "susa1951" and is located in Hartlepool, Cleveland. This item can be shipped worldwide.