Rolex introduced Yellow Rolesor — the combination of Oystersteel and 18ct yellow gold — to make precious metal accessible in a tool watch context. The Daytona 116503 applies that formula to the chronograph: a 40mm case where the gold bezel, crown, pushers, and center bracelet links contrast against brushed steel surfaces. With a black dial, the gold accents read as sharp and defined rather than ornamental, placing this reference firmly in the instrument-watch category despite the two-tone construction.
Key Specifications
| Specification | Detail |
|---|---|
| Reference | m116503 |
| Case Size | 40mm diameter |
| Case Material | Yellow Rolesor (Oystersteel and 18ct yellow gold) |
| Bezel | Fixed, engraved tachymeter scale in 18ct yellow gold |
| Dial Color | Black with 3 chronograph subdials |
| Crystal | Sapphire (no Cyclops — no date window) |
| Movement | Swiss automatic or Japanese automatic (select at checkout) |
| Water Resistance | 100 meters |
| Bracelet | Oystersteel and 18ct yellow gold Oyster bracelet |
| Clasp | Oysterlock safety clasp with Easylink 5mm comfort extension |
| Functions | Hours, minutes, small seconds, chronograph with 30-minute and 12-hour counters |
| Subdials | Running seconds at 6, 30-minute counter at 3, 12-hour counter at 9 |
The m116503 Up Close: Case, Dial and Bracelet
The 40mm case in Yellow Rolesor splits its finishing between materials: polished gold bezel and crown guards, brushed steel case flanks. Screw-down pushers at 2 and 4 o’clock control the chronograph start/stop and reset functions. The Triplock crown seals to 100 meters. At roughly 12.2mm thick, the Daytona case remains wearable under a shirt cuff despite the chronograph complication.
Black dials on two-tone Daytonas produce maximum contrast. The tachymeter scale engraved into the gold bezel reads in units per hour — timed against the chronograph seconds hand to measure speed over a known distance. Three recessed subdials break the black surface: running seconds at 6, thirty-minute counter at 3, twelve-hour counter at 9. The two-tone Oyster bracelet alternates brushed steel outer links with polished gold center links, secured by the Oysterlock clasp. Browse all chronograph options in the Daytona collection.
Movement Options: Swiss vs Japanese
The Daytona requires a chronograph-capable movement. Both options here deliver fully functional start, stop, and reset across all three subdials.
- Swiss Automatic — Column-wheel chronograph at 28,800 vph with approximately 72 hours of power reserve. References the genuine Caliber 4130 with its vertical clutch engagement for smooth chronograph start without hand stutter. Hacking seconds and chronograph reset to zero.
- Japanese Automatic — Miyota-based chronograph at 21,600 vph with approximately 42 hours of reserve. All three subdials functional. Accessible for independent service and lower long-term maintenance cost.
Both movements operate the screw-down pushers identically. The Swiss option matches the Caliber 4130 column-wheel architecture and 72-hour reserve that define the genuine Daytona’s mechanical character.
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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