For decades, the Rolex Explorer II “Polar” stood alone. While black dials dominated the luxury steel sports watch category, the crisp, stark-white Polar dial offered a defiant, highly legible alternative for those who preferred their tool watches to look like actual tools.
But the landscape has shifted. With Tudor’s release of the opaline-dial Black Bay Pro, the Crown’s younger sibling has finally stepped into the snow.
If you are hunting for a white-dial GMT, you now have a serious choice to make. We currently have the “Big Three” of the modern Polar world in stock—the classic 40mm Rolex 16570, the upsized 42mm Rolex 216570 and 226570, and the new 39mm Tudor Black Bay Pro Opaline.
Let’s break down how they compare on the wrist, under the loupe, and in the wild.
The Spec Showdown
Before diving into the aesthetics, here is how the tale of the tape breaks down across the four models.
| Feature | Rolex 16570 | Rolex 216570 | Rolex 226570 | Tudor BB Pro 79470 |
|---|---|---|---|---|
| Case Size | 40mm | 42mm | 42mm | 39mm |
| Thickness | ~12.2mm | ~12.5mm | ~12.5mm | 14.6mm |
| GMT Hand | Red (Thin) | Orange (Thick) | Orange (Thick) | Yellow “Snowflake” |
| Dial Color | Crisp White | Crisp White | Crisp White | Opaline (Silvery-White) |
| Power Reserve | 50 Hours | 48 Hours | 70 Hours | 70 Hours |
The Neo-Vintage Classic: Rolex 16570
For purists, the 16570 is the pinnacle of Rolex case design. Produced from 1989 until 2011, it features the classic 40mm Oyster case and a slender ~12.2mm profile that slips effortlessly under a cuff.
The aesthetic is defined by its restraint: a thin, cherry-red 24-hour hand and smaller hour markers with blackened white-gold surrounds that pop against the stark white dial. If you want a Polar dial that feels like a traditional, pre-hype Rolex tool watch, the 16570 is your undisputed champion.
Ready to secure the perfect 40mm neo-vintage tool watch? Shop our available Rolex Explorer II 16570 models.
The Modern Giants: Rolex 216570 & 226570
In 2011, Rolex celebrated the Explorer II’s 40th anniversary by releasing the 216570. They didn’t just update it; they supersized it. The case grew to 42mm, the lugs widened, and the dial was fitted with “Maxi” markers and hands. Most notably, they resurrected the bright orange, oversized 24-hour hand from the original 1970s “Freccione” (Ref. 1655).
The current generation, the 226570, refined this aggressive stance. Rolex slimmed down the lugs slightly for a more balanced profile and upgraded the engine to the Caliber 3285, boosting the power reserve to 70 hours. Both the 216570 and 226570 wear large and loud—they are unabashedly modern sports watches that demand wrist presence.
Make a bold statement with the modern 42mm case and upgraded Caliber 3285. Shop the Rolex Explorer II 226570 & 216570.
The Challenger: Tudor Black Bay Pro Opaline (79470)
When Tudor released the Black Bay Pro, it was widely viewed as a love letter to the original vintage Rolex 1655. But the introduction of the Opaline dial changed the math completely.
Instead of stark, flat white, Tudor opted for a galvanized opaline finish that gives off a subtle, silvery-matte glow. Like the Rolex, it uses blackened surrounds on the hour markers and hands to maximize contrast, paired with Tudor’s signature yellow Snowflake GMT hand.
At 39mm, the Tudor actually shares more spiritual DNA with the classic 40mm Rolex 16570 than the modern 42mm giants do. However, you must account for the thickness: at 14.6mm, the Tudor sits noticeably taller on the wrist due to its domed sapphire crystal and the robust MT5652 movement.
Discover modern, robust GMT functionality packed with mid-century vintage charm. Shop the Tudor Black Bay Pro Opaline.
Which Polar Belongs on Your Wrist?
- Buy the Rolex 16570 if: You want perfect, classic proportions, a lightweight feel, and the charm of an older 5-digit Rolex reference.
- Buy the Rolex 216570 or 226570 if: You have a larger wrist (or prefer a bolder look), want modern bracelet engineering, and love the aggressive pop of the orange Maxi hand.
- Buy the Tudor Black Bay Pro if: You love the 39mm footprint, prefer the vintage-leaning matte opaline texture, and want modern, robust GMT functionality at a highly competitive price point.
Want to see these pieces in action? Check out our recent video review where we put these exact models side-by-side.
Ready to find your perfect white-dial GMT? Whether you are drawn to the neo-vintage charm of a classic 5-digit reference, the bold presence of a modern Explorer II, or the rugged, heritage-inspired value of the Black Bay Pro, finding the right watch is all about exploring your options. Browse our complete collection of in-stock Rolex and Tudor timepieces at SwissWatchExpo to discover your next adventure-ready companion.
