The Pasha de Cartier Reference 2388 / W3105055 GMT Power Reserve is a highly collectible luxury timepiece originating from the late 1990s and early 2000s. This specific variant features a rare, highly textured grey guilloché dial, making it one of the most visually distinctive layouts from Cartier's neo-vintage high-horology era.

• Dial Layout: The 24-hour second time zone (GMT) is displayed at the 12 o’clock position with a globe-like motif. The fan-shaped power reserve scale rests at 6 o'clock, and the date window is integrated at 4:30. 

• Signature Canteen Crown Guard: It features the historical screw-down protective cap attached to the case via a small security link, tipped with a blue sapphire cabochon. 

• Case & Lugs: Utilizes the iconic Pasha "Vendôme" T-bar lugs and a rotating concave bezel. 

• Exhibition Caseback: The sapphire caseback shows off the finely engraved, highly decorated movement featuring the double Cartier logo pattern.

• Feature	Details
  Reference	2388 / W3105055
  Case Diameter	38mm (widely considered the "sweet spot" proportions for the Pasha)
  Case Thickness	Ultra-thin 10.2mm to 10.5mm profile
  Dial	Grey with a complex radiating 12-section guilloché pattern
  Movement	Automatic Cartier Caliber 480 (Built on a premium Girard-Perregaux 3100/480 base caliber)
  Complications	GMT (24-hour subdial), Power Reserve indicator, and Date window
  Water Resistance	100 meters (10 ATM)