Breitling chrono Sirius watch with Swiss made with a reliable chronograph quartz movement. This watch keeps accurate time being quartz and all chronograph functions works properly. The strap is a genuine breitling strap with buckle with a lot of life left in it. The case and sapphire crystal is free of nasty scratches. There is no box or paper but am sure the watch will be authenticated by Ebay before being sent to the winning bidder for peace of mind. Please study all pictures as this form part of the description. The original silver crown is worn and since been replaced by a gold crown which works perfectly. Thanks.