External Battery Compartments for Watch Winder

External Battery Compartments for Watch Winder from Brand Watch Winder Smith

Batteies Type A, 2pcs, means A*2pcs

Power Supplier 5 Times Bigger Than Internal Battery Compartments

There are Big Port and Small Port 2 Variations, Depends on The Port Size of Your Watch Winder, Please See the Third Pictures to Choose the One You Need