Updated
Rolex Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers) vs Tissot Le Locle Powermatic 80
Rolex's timepiece meets Tissot's dress watch
Quick Verdict
The Tissot Le Locle Powermatic 80 ($500–$1,000) delivers ETA-Based Automatic technology in the tier below the Rolex Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers) ($10,000–$25,000). The Le Locle Powermatic 80 measures 39.3mm and is rated 30m (3 ATM). The Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers) justifies its premium with Swiss Made heritage and Automatic, Rolex calibre 2235, quickset date. Both represent excellent choices in the luxury watch category.
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Rolex
Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers)
$10,000–$25,000
Specifications Compared
| Feature | Rolex Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers) | Tissot Le Locle Powermatic 80 |
|---|---|---|
| Price | $10,000–$25,000 | $500–$1,000 |
| Case Size | 26mm | 39.3mm |
| Movement | Automatic, Rolex calibre 2235, quickset date | Powermatic 80.111 |
| Caliber Type | Rolex 2235, chronometer certified | ETA-Based Automatic |
| Power Reserve | About 42 hours | 80 Hours |
| Water Resistance | 100m (10 ATM) | 30m (3 ATM) |
| Crystal | Sapphire Crystal, Cyclops | Sapphire Crystal |
| Case Material | Oystersteel with 18k yellow gold fluted bezel (yellow Rolesor) | Stainless Steel |
| Origin | Swiss Made | Swiss Made (Swatch Group) |
Category-by-Category Analysis
Design & Aesthetics
Rolex's design language vs Tissot's approach
The Rolex Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers) features a Oystersteel with 18k yellow gold fluted bezel (yellow Rolesor) case at 26mm with Sapphire Crystal, Cyclops protection. The Tissot Le Locle Powermatic 80 offers Stainless Steel construction at 39.3mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic, Rolex calibre 2235, quickset date vs Powermatic 80.111
The Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers) runs the Automatic, Rolex calibre 2235, quickset date (Rolex 2235, chronometer certified, About 42 hours power reserve) at standard frequency. The Le Locle Powermatic 80 uses the Powermatic 80.111 (ETA-Based Automatic, 80 Hours reserve) at 21,600 vph (3 Hz). The Le Locle Powermatic 80 offers a longer power reserve.
Wearability & Fit
26mm vs 39.3mm — different wrist presence
At 26mm, the Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers) wears more compactly on smaller wrists compared to the Le Locle Powermatic 80 at 39.3mm. Water resistance differs: 100m (10 ATM) vs 30m (3 ATM).
Value & Cost of Ownership
Tissot sits in the lower tier
The Rolex Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers) sits at $10,000–$25,000 and the Tissot Le Locle Powermatic 80 at $500–$1,000. On the specs that outlast any price: the Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers) uses Sapphire Crystal, Cyclops with About 42 hours, against Sapphire Crystal and 80 Hours on the Le Locle Powermatic 80. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 30m (3 ATM)
The Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers) is rated to 100m (10 ATM) while the Le Locle Powermatic 80 handles 30m (3 ATM). The Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers) is better suited for water activities.
Our Verdict
Rolex
Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers)
Choose the Rolex Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers) if you prioritize Rolex 2235, chronometer certified engineering, Swiss Made craftsmanship, and 100m (10 ATM) water resistance. At $10,000–$25,000, it delivers Automatic, Rolex calibre 2235, quickset date with About 42 hours power reserve.
Check Price on AmazonTissot
Le Locle Powermatic 80
Choose the Tissot Le Locle Powermatic 80 if you value ETA-Based Automatic technology, Swiss Made (Swatch Group) heritage, and 39.3mm proportions. At $500–$1,000, the Powermatic 80.111 with 80 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Rolex Lady-Datejust 26 79173 (two-tone, cacholong dial with diamond 6 and 9, box and papers) and Tissot Le Locle Powermatic 80 represent two distinct approaches to fine watchmaking — the Rolex bringing Swiss Made tradition while Tissot delivers Swiss Made (Swatch Group) 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.