孟加拉采购需求：男士石英日历腕表，按系列选购，选购

I'm looking to source a specific model from your factory. I've noticed some third-party sellers offering this watch, but I have concerns about the authenticity of their products. It's really important for me to ensure I'm purchasing genuine items. Can you confirm if you manufacture this model? I'd appreciate any details about the quality and originality guarantees you provide. I'm eager to establish a reliable partnership, so any information you can share would be helpful!