The ref. 16720 occupies a notable position in GMT-Master history as one of the later references to carry the original GMT-Master name before the series transitioned fully to GMT-Master II branding. Produced with a black dial and a rotating 24-hour bezel, the 16720 offers genuine dual-timezone functionality in the robust 40mm Oyster case that professionals and travellers have relied on since the model’s 1955 debut alongside Pan American World Airways.
Key Specifications
| Specification | Detail |
|---|---|
| Reference | 16720 |
| Case Size | 40mm |
| Case Material | Oystersteel |
| Bezel | Bidirectional rotating, 24-hour graduated |
| Dial | Black |
| Crystal | Sapphire |
| Movement | Automatic with GMT and date |
| Water Resistance | 30m |
| Bracelet | Oyster, three-piece links |
| Clasp | Folding Oysterclasp |
| Functions | Hours, minutes, seconds, GMT hand, date |
The 16720 Up Close: Case, Dial and Bracelet
The black dial provides maximum legibility, with luminescent hour markers and a prominent arrow-tipped GMT hand in a contrasting colour that tracks a second timezone on the 24-hour bezel. The rotating bezel is graduated from 0 to 24, enabling the wearer to read a third timezone reference at a glance. A date aperture at three o’clock completes the practical layout.
The 40mm Oystersteel case sits firmly in the tool-watch category, with solid wrist presence and crown guards protecting the screw-down winding crown. The Oyster bracelet with three-piece links delivers a secure, professional fit suited to everyday wear and travel. Browse all dual-timezone references in the GMT-Master collection.
Movement Options: Swiss vs Japanese
Select from two movement tiers for this GMT reference:
- Swiss automatic with GMT — higher beat rate for smooth sweep, independent GMT hand setting, extended power reserve, and architecture inspired by the genuine GMT caliber. The top choice for serious travellers and collectors.
- Japanese automatic with GMT — Miyota-based movement with reliable GMT function, proven durability, and easy servicing worldwide. A dependable option for frequent timezone crossings.
Both options deliver fully functional dual-timezone operation with quickset date adjustment.
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.












1 review for Replica Rolex GMT-Master 40mm Dial Black 16720