Vintage Lathem Watchman Clock Leather Case With Key Security Guard Patrol 832051 Has key for back lock as well as wind up key. Not sure whether it works or not. So being sold as is. Really unique item though. Brand: Lathem Color: Black Original/Licensed Reproduction: Original Shape: Round Original/Reproduction: Original Style/ Origin/ Theme: Antique/ Vintage Sold as pictured. Thanks for looking! Used for railroad