The GMT-Master II 126718GRNR stands apart with a dial cut from natural tiger iron meteorite, a material combining tiger’s eye, red jasper, and hematite into unique banding patterns that ensure no two dials look identical. Set in a 40mm yellow gold case with a black-and-green Cerachrom bezel, this reference brings a distinctly geological character to the GMT-Master II family.
Key Specifications
| Specification | Detail |
|---|---|
| Reference | 126718GRNR |
| Case Size | 40mm |
| Case Material | 18k Yellow Gold |
| Bezel | Bidirectional, black-green Cerachrom |
| Dial | Tiger iron meteorite |
| Crystal | Sapphire with Cyclops lens |
| Movement | Automatic GMT |
| Water Resistance | 100m / 330ft |
| Bracelet | Oyster, three-piece links |
| Clasp | Oysterclasp with Easylink |
| Functions | Hours, minutes, seconds, date, GMT |
The 126718GRNR Up Close
The 40mm yellow gold case carries substantial wrist presence and warmth. The bidirectional Cerachrom bezel insert graduates from black to green, matching the organic tones of the tiger iron dial. Natural banding in the meteorite creates striations of amber, rust, and dark metallic grey across the dial surface.
The Oyster bracelet matches the case material and terminates in an Oysterclasp with Easylink comfort extension — allowing approximately 5mm of micro-adjustment. Find more dual-timezone references in our GMT-Master collection.
Movement
An automatic GMT movement powers the independent 24-hour hand displayed on the green triangle at twelve o’clock. The wearer can track a second timezone while maintaining local time via the standard hour, minute, and seconds hands. A date window at three o’clock completes the functional layout.
Shipping, Warranty and Returns
Every order ships with discreet packaging and full tracking. Delivery times vary by destination — see our shipping policy for detailed timeframes and methods. This watch is covered by our standard movement warranty. If your purchase does not meet expectations, review our return and exchange policy for available options.






















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