Rolex Day-Date 40mm

The Modern Presidential Size

The Day-Date 40 replaced the long-running 36mm as Rolex's flagship presidential watch in 2015. The 4mm increase in diameter — from 36mm to 40mm — transformed the watch's wrist presence without sacrificing the elegant proportions that define the Day-Date. The case is thinner relative to its width than the previous generation, giving the 40mm a contemporary profile that sits flat on the wrist.

Inside, the Cal. 3255 movement delivers 70-hour power reserve (up from 48 hours in the 36mm's Cal. 3155), a Chronergy escapement for improved energy efficiency, and a Parachrom hairspring that resists magnetic fields and shocks. The Day-Date 40 is available exclusively in precious metals: Everose gold, yellow gold, white gold, and platinum.

Key 40mm References

228238 (Yellow Gold) — The classic Presidential in yellow gold. Champagne, white, and Roman numeral dial configurations. The most traditional Day-Date choice.

228235 (Everose Gold) — The contemporary favorite. Olive-green Roman, chocolate, and sundust dials. Currently the most traded Day-Date 40 reference on the secondary market.

228236 (Platinum) — The ultimate Day-Date with exclusive ice-blue dial. The heaviest and most expensive standard-production Rolex.

228239 (White Gold) — The stealth precious-metal option. Visually similar to steel from a distance, but the weight and finishing reveal white gold immediately in hand.

Pre-Owned Pricing Guide

40mm vs. 36mm: Market Dynamics

The 40mm has overtaken the 36mm as the primary Day-Date size in the secondary market. Younger collectors prefer the larger diameter, and the Cal. 3255 movement is a meaningful upgrade over the 3155. However, the 36mm retains a strong collector base — particularly in vintage yellow gold configurations where the original proportions feel more historically correct. Both sizes hold value well; the 40mm simply moves faster.

Sell Your Day-Date 40

Our specialists handle Day-Date 40 transactions daily across all four metals. We verify case material, dial originality, and bracelet condition — the President bracelet's polished center links show wear quickly, and condition directly impacts the offer. Walk-in appraisal or insured Parcel Pro shipping with same-day payment.

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