Updated
Tissot PRX Powermatic 80 vs Rolex Day-Date 18238 (18k yellow gold, blue diamond dial)
Two timepieces compared — $500–$1,000 vs $25,000+
Quick Verdict
The Tissot PRX Powermatic 80 ($500–$1,000) offers In-House Automatic (ETA C07.111 base) precision in the tier below the Rolex Day-Date 18238 (18k yellow gold, blue diamond dial) ($25,000+). The PRX Powermatic 80 measures 40mm and is rated 100m (10 ATM). The Day-Date 18238 (18k yellow gold, blue diamond dial) counters with Swiss Made craftsmanship and 100m (10 ATM) water resistance. Both are exceptional timepieces for their respective tiers.
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Specifications Compared
| Feature | Tissot PRX Powermatic 80 | Rolex Day-Date 18238 (18k yellow gold, blue diamond dial) |
|---|---|---|
| Price | $500–$1,000 | $25,000+ |
| Case Size | 40mm | 36mm |
| Movement | Automatic Powermatic 80.111 | Automatic, Rolex Calibre 3155 |
| Caliber Type | In-House Automatic (ETA C07.111 base) | Rolex 3155, in-house automatic, chronometer |
| Power Reserve | 80 Hours | About 48 hours |
| Water Resistance | 100m (10 ATM) | 100m (10 ATM) |
| Crystal | Scratch-resistant Sapphire | Sapphire Crystal, Cyclops |
| Case Material | 316L Stainless Steel | 18k yellow gold |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Tissot's design language vs Rolex's approach
The Tissot PRX Powermatic 80 features a 316L Stainless Steel case at 40mm with Scratch-resistant Sapphire protection. The Rolex Day-Date 18238 (18k yellow gold, blue diamond dial) offers 18k yellow gold construction at 36mm with Sapphire Crystal, Cyclops. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Powermatic 80.111 vs Automatic, Rolex Calibre 3155
The PRX Powermatic 80 runs the Automatic Powermatic 80.111 (In-House Automatic (ETA C07.111 base), 80 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Day-Date 18238 (18k yellow gold, blue diamond dial) uses the Automatic, Rolex Calibre 3155 (Rolex 3155, in-house automatic, chronometer, About 48 hours reserve) at standard. The PRX Powermatic 80 edges ahead on power reserve.
Wearability & Fit
40mm vs 36mm — different wrist presence
At 40mm, the PRX Powermatic 80 has a bolder wrist presence compared to the Day-Date 18238 (18k yellow gold, blue diamond dial) at 36mm. Water resistance differs: 100m (10 ATM) vs 100m (10 ATM).
Value & Cost of Ownership
Tissot sits in the lower tier
The Tissot PRX Powermatic 80 sits at $500–$1,000 and the Rolex Day-Date 18238 (18k yellow gold, blue diamond dial) at $25,000+. On the specs that outlast any price: the PRX Powermatic 80 uses Scratch-resistant Sapphire with 80 Hours, against Sapphire Crystal, Cyclops and About 48 hours on the Day-Date 18238 (18k yellow gold, blue diamond dial). Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 100m (10 ATM)
The PRX Powermatic 80 is rated to 100m (10 ATM) while the Day-Date 18238 (18k yellow gold, blue diamond dial) handles 100m (10 ATM). Both offer identical water resistance ratings.
Our Verdict
Tissot
PRX Powermatic 80
Choose the Tissot PRX Powermatic 80 if you prioritize In-House Automatic (ETA C07.111 base) engineering, Swiss Made craftsmanship, and 100m (10 ATM) water resistance. At $500–$1,000, it delivers Automatic Powermatic 80.111 with 80 Hours power reserve.
Check Price on AmazonRolex
Day-Date 18238 (18k yellow gold, blue diamond dial)
Choose the Rolex Day-Date 18238 (18k yellow gold, blue diamond dial) if you value Rolex 3155, in-house automatic, chronometer technology, Swiss Made heritage, and 36mm proportions. At $25,000+, the Automatic, Rolex Calibre 3155 with About 48 hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Tissot PRX Powermatic 80 and Rolex Day-Date 18238 (18k yellow gold, blue diamond dial) represent two distinct approaches to the timepiece category — the Tissot bringing Swiss Made tradition while Rolex delivers Swiss Made engineering.
Frequently Asked Questions
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How This Page Was Made
Our comparisons are generated from a hand-maintained specification database and reviewed under our editorial standards. We use AI tools to assemble pages from that data. We don’t invent specs: every number traces back to the database, and when we correct an entry, the fix is applied site-wide. As an Amazon Associate, The Horologist earns from qualifying purchases.