The Datejust and Day-Date share design family traits — fluted bezel, Cyclops lens, Superlative Chronometer certification — but differ in case material and one key function: the Day-Date adds the day of the week spelled out in full, and is the only Rolex line never made in steel. Neither has verified market price data in Cazador yet.
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| Rolex Datejust 41 | Rolex Day-Date 40 | |
|---|---|---|
| Case diameter | 41 mm | 40 mm |
| Material | Oystersteel and 18kt white gold (Rolesor) | 18kt yellow gold (all-gold) |
| Movement | Calibre 3235, in-house, automatic, Chronergy escapement | Calibre 3255, in-house, automatic, Chronergy escapement |
| Power reserve | ~70 hours | ~70 hours |
| Certification | Superlative Chronometer | Superlative Chronometer |
| Water resistance | 100 m | 100 m |
| Bezel | Fluted, 18kt white gold | Fluted, 18kt yellow gold |
| Function | Date with Cyclops lens | Day of the week spelled out in full + date with Cyclops lens |
| Bracelet | 5-link Jubilee, Oystersteel | President, 18kt yellow gold |
| Available in steel | Yes (this and other configurations) | No — never made in steel |
| Market price in Cazador | Insufficient data | Insufficient data |
Pick the Datejust 41 if you want the classic fluted-bezel design without giving up steel: this reference pairs Oystersteel with white gold only on the bezel.
Rolex Datejust 41 →Pick the Day-Date 40 if you want the dress-representation watch Rolex reserves exclusively for precious metals, with the added function of the day of the week spelled out in full.
Rolex Day-Date 40 →