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DS+CONCEPT
DS Concept
 
1  Sapphire crystal (ultra resistant to scratches)

2  O-ring gasket on stem

3  Two o-ring gaskets in crown

4  Specific gasket on case back

5  Reinforced case back
 
 
 Double Security DS+
 
Double Security DSplus 1  Screw-down crown

2  Screwed-on case back with inner cover
 
 
 
 
 
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A Company of the Swatch Group