Updated
Tissot PRX Powermatic 80 vs Rolex Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette 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 Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette dial) ($25,000+). The PRX Powermatic 80 measures 40mm and is rated 100m (10 ATM). The Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette dial) counters with Swiss Made craftsmanship and 100m (10 ATM) per Rolex for the Oyster case water resistance. Both are exceptional timepieces for their respective tiers.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.

Rolex
Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette dial)
$25,000+
Specifications Compared
| Feature | Tissot PRX Powermatic 80 | Rolex Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette dial) |
|---|---|---|
| Price | $500–$1,000 | $25,000+ |
| Case Size | 40mm | 26mm |
| Movement | Automatic Powermatic 80.111 | Automatic, Rolex calibre 2135, quickset date |
| Caliber Type | In-House Automatic (ETA C07.111 base) | Rolex 2135, chronometer certified |
| Power Reserve | 80 Hours | About 42 hours |
| Water Resistance | 100m (10 ATM) | 100m (10 ATM) per Rolex for the Oyster case |
| Crystal | Scratch-resistant Sapphire | Sapphire Crystal |
| Case Material | 316L Stainless Steel | 18k yellow gold, factory diamond bezel and diamond-set lugs |
| 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 Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette dial) offers 18k yellow gold, factory diamond bezel and diamond-set lugs construction at 26mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Powermatic 80.111 vs Automatic, Rolex calibre 2135, quickset date
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 Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette dial) uses the Automatic, Rolex calibre 2135, quickset date (Rolex 2135, chronometer certified, About 42 hours reserve) at standard. The PRX Powermatic 80 edges ahead on power reserve.
Wearability & Fit
40mm vs 26mm — different wrist presence
At 40mm, the PRX Powermatic 80 has a bolder wrist presence compared to the Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette dial) at 26mm. Water resistance differs: 100m (10 ATM) vs 100m (10 ATM) per Rolex for the Oyster case.
Value & Cost of Ownership
Tissot sits in the lower tier
The Tissot PRX Powermatic 80 sits at $500–$1,000 and the Rolex Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette 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 and About 42 hours on the Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette dial). Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 100m (10 ATM) per Rolex for the Oyster case
The PRX Powermatic 80 is rated to 100m (10 ATM) while the Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette dial) handles 100m (10 ATM) per Rolex for the Oyster case. 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
Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette dial)
Choose the Rolex Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette dial) if you value Rolex 2135, chronometer certified technology, Swiss Made heritage, and 26mm proportions. At $25,000+, the Automatic, Rolex calibre 2135, quickset date with About 42 hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Tissot PRX Powermatic 80 and Rolex Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette dial) represent two distinct approaches to the timepiece category — the Tissot bringing Swiss Made tradition while Rolex delivers Swiss Made engineering.
Frequently Asked Questions
More Comparisons
Tissot PRX vs Hamilton Khaki Field
Integrated bracelet sophistication meets military heritage
Tag Heuer Carrera Chronograph vs Tissot PRX Powermatic 80
Tag Heuer's chronograph meets Tissot's timepiece
Tag Heuer Carrera Chronograph vs Rolex Lady-Datejust 26 (18k gold, diamond bezel and lugs, red vignette dial)
Tag Heuer's chronograph meets Rolex's timepiece
Explore These Watches
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.
