1. Ref.16760 (1983-1988)
Historical Significance: The first-generation GMT-Master II, laying the foundation for subsequent designs.
Key Features:
Red-Black “Coca-Cola” Bezel: Introduced the iconic red-black anodized aluminum bezel.
Technical Innovations: Equipped with sapphire crystal, 3085 movement (independent triple time-zone adjustment), and 18K white gold luminescent hour markers.
Case Design: Thickened case and crown guards, nicknamed “Fat Lady”.
Market Positioning: Highly sought-after vintage collectible with significant due to rarity.
2. Ref.16710 Coke (Red-Black, 1990-2007)
Transitional Model: Second-generation GMT-Master II with modular upgrades.
Key Features:
Aluminum Bezel: Continued the red-black design, prone to fading (especially T25 dial versions).
Movement Evolution: Early models used 3185 calibre, later upgraded to 3186 (improved shock resistance).
Interchangeable Bezels: Users could swap between black, red-black, or red-blue bezels.
Market Positioning: Cost-effective entry-level vintage option with lightweight bracelet.
3. Ref.16710 Pepsi (Red-Blue, 1999-2007)
Special Edition: Red-blue aluminum bezel variant under the 16710 series.
Key Features:
Color Fading: Early aluminum bezels showed noticeable color deterioration.
Same Mechanics: Shared 3185/3186 movements with the Coke version.
Market Positioning: Higher than Coke due to scarcity (discontinued aluminum Pepsi bezels).
4. Ref.126710 (2018-Present)
Modern Evolution: Third-generation GMT-Master II with advanced technology.
Key Features:
Cerachrom Ceramic Bezel: Available in red-blue “Pepsi” (126710BLRO) or gray-black “Sprite” (126710GRNR), scratch-resistant and fade-proof.
3285 Movement: 70-hour power reserve with Chronergy escapement for enhanced precision.
Bracelet Options: Jubilee (five-link) for retro elegance or Oyster for sporty durability.
Market Positioning: Pepsi models command high premiums (>retail price), while gray-black versions offer practicality.
