Material : Genuine Croc Leather Horn Back Strap.. Black, 1 : 1 Dimension as per Genuine Standard Strap  Deployant Clasp,  all correct markings,   

Dimension :

Lug/Buckle  :  28mm / 17.5mm 

Length :  65mm / 105mm

Can install for :

All AP Royal Chronograph Secs at 12 watches. 

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