This is a real special and collector's item with an interesting story behind it. The standard Caliber used by Rolex in all GMT-Master and Explorer II models, was upgraded to the 'new' 3186. It's hard to find watches powered by this fantastic caliber as It was present in reference 16710 just for a transition period within a few months. Powered by the Caliber 3186, (Only a few ones produced as a transition period when Rolex launched the 116710LN with Cerachrom® insert as total new model). Rolex Oyster Perpetual Date "GMT-MASTER II" Stick Dial 'Z Series' Ref: 16710BLRO Movement: Automatic Case: Steel 40mm 'No Holes' Stainless steel Oyster bracelet with extra link. Dial: Black Glass: Sapphire Crown: Original Crown Rolex Swiss Made Year: 2006 Condition: 9/10 Serviced in Rolex Official Authorised Dealer in February 2022 with 2 years of warranty FULL SET (Box, Documents, Travel Box, Warranty, Extra Links, etc.) Registered and insurance shipping Rolex caliber 3186 specifications Functions: Hours, minutes, seconds, 24-hour GMT hand, date. Frequency: 28.800 A/h Jewels: 31 Power reserve: 48 hours. Accuracy: -2/+2 Seconds per day Diameter: 28,5mm Height: approximately 6.5mm Bidirectional perpetual rotor *Taxes for shipments outside the European Union will be paid by the buyer. Free Mondani book offered ! Two volumes in a slipcase with exclusive contents, unpublished images, very detailed information and updated prices of all published watches. Retail price : 620€ Giorgia Mondani acts as a guest curator for this auction, she is not the seller, she is not involved in the negotiations and has not screened or otherwise reviewed the objects, and cannot be held responsible nor liable for the objects in this auction nor any statements made by the seller