Operation not confirmed. I suspect the battery is dead, but I'll treat it as junk. Setting the time with the crown worked fine. [Product] JR Hokkaido Hokutosei Blue Train Pocket Watch [Model Number/Serial] Sleeper Limited Express Hokutosei [Material] Metal [Color] Gold [Size] Case: Approximately 35mm x 42.5mm Chain Length: 39cm [Specifications] Movement: Quartz Display Type: Analog Case Shape: Round Face