Tissot PRX Powermatic 80 vs Tag Heuer Aquaracer Professional 300
Tissot's timepiece meets Tag Heuer's diver
Quick Verdict
The Tissot PRX Powermatic 80 ($500–$1,000) offers In-House Automatic (ETA C07.111 base) precision in the tier below the Tag Heuer Aquaracer Professional 300 ($2,500–$5,000). The PRX Powermatic 80 measures 40mm and is rated 100m (10 ATM). The Aquaracer Professional 300 counters with Swiss Made craftsmanship and 300m (30 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Tissot PRX Powermatic 80 | Tag Heuer Aquaracer Professional 300 |
|---|---|---|
| Price | $500–$1,000 | $2,500–$5,000 |
| Case Size | 40mm | 43mm |
| Movement | Automatic Powermatic 80.111 | Automatic Caliber 5 |
| Caliber Type | In-House Automatic (ETA C07.111 base) | Automatic (ETA 2824-2 / Sellita SW200 base) |
| Power Reserve | 80 Hours | 38 Hours |
| Water Resistance | 100m (10 ATM) | 300m (30 ATM) |
| Crystal | Scratch-resistant Sapphire | Sapphire with Anti-Reflective Coating |
| Case Material | 316L Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Tissot's design language vs Tag Heuer's approach
The Tissot PRX Powermatic 80 features a 316L Stainless Steel case at 40mm with Scratch-resistant Sapphire protection. The Tag Heuer Aquaracer Professional 300 offers Stainless Steel construction at 43mm with Sapphire with Anti-Reflective Coating. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Powermatic 80.111 vs Automatic Caliber 5
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 Aquaracer Professional 300 uses the Automatic Caliber 5 (Automatic (ETA 2824-2 / Sellita SW200 base), 38 Hours reserve) at 28,800 vph (4 Hz). The PRX Powermatic 80 edges ahead on power reserve.
Wearability & Fit
40mm vs 43mm — different wrist presence
At 40mm, the PRX Powermatic 80 wears more compactly on smaller wrists compared to the Aquaracer Professional 300 at 43mm. Water resistance differs: 100m (10 ATM) vs 300m (30 ATM).
Value & Cost of Ownership
Tissot sits in the lower tier
The Tissot PRX Powermatic 80 sits at $500–$1,000 and the Tag Heuer Aquaracer Professional 300 at $2,500–$5,000. On the specs that outlast any price: the PRX Powermatic 80 uses Scratch-resistant Sapphire with 80 Hours, against Sapphire with Anti-Reflective Coating and 38 Hours on the Aquaracer Professional 300. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 300m (30 ATM)
The PRX Powermatic 80 is rated to 100m (10 ATM) while the Aquaracer Professional 300 handles 300m (30 ATM). The Aquaracer Professional 300 offers superior water resistance.
Materials Face-Off
| Component | Tissot PRX Powermatic 80 | Tag Heuer Aquaracer Professional 300 |
|---|---|---|
| Case alloy | Stainless steel 316L (medical-grade, with composition Cr 16–18%, Ni 10–14%, Mo 2–3%) — the standard mid-range Swiss spec; not 904L (Rolex Oystersteel | Stainless steel 316L (medical-grade, with composition Cr 16–18%, Ni 10–14%, Mo 2–3%). Standard mid-range Swiss spec. Not 904L (Rolex Oystersteel) or G |
| Sapphire crystal | Synthetic corundum (Al₂O₃) grown via the Verneuil process, Mohs hardness 9. Anti-reflective coating on the interior surface only (single-side AR is st Mohs 9 | Ceramic (zirconia-based ZrO₂) — virtually scratchproof (Mohs ~9), color-stable under UV exposure. The ceramic is sintered, then engraved with dive sc |
| Lume specification | Super-LumiNova on the hands and markers. Grade and glow duration are not published by the manufacturer for this reference, so neither is claimed here. | Synthetic sapphire (Al₂O₃) grown via the Verneuil process, Mohs 9. Anti-reflective coating on interior surface only. Cyclops magnifier above date wind Mohs 9 |
| Bracelet alloy | Stainless steel 316L matching the case. | Super-LumiNova on the hands and indices. Grade and glow duration are not published by the manufacturer for this reference, so neither is claimed here. |
| Bracelet alloy | — | Stainless steel 316L matching the case. |
Cost of Ownership Compared
The Tissot PRX Powermatic 80 saves you $2,815 over 5 years of ownership
Who Should Pick Which
Pick the Tissot PRX Powermatic 80 if…
- Strong value proposition under $1,000 with automatic Swiss movement
- Active lifestyle wearers — 100m water resistance handles swimming and water sports
- Weekend warriors — 80-hour power reserve means it survives two days off the wrist
- Those who prioritize scratch resistance — sapphire crystal
- Integrated-bracelet aesthetic fans wanting the Royal Oak look for 1/20th the price
Pick the Tag Heuer Aquaracer Professional 300 if…
- Dive watch enthusiasts — 300m water resistance is proper dive spec
- Those who prioritize scratch resistance — sapphire crystal
- Dive watch collectors who appreciate proper ISO-rated tool watches
- Buyers who prefer a commanding wrist presence — 43mm case
Tissot PRX Powermatic 80
- Retail markup is generous. The PRX commonly transacts at 30–40% under retail on Jomashop, Tissot's own e-commerce promotions, and authorized online dealers. Paying full $725 retail is rarely the right move — it usually means immediate ~30% loss the moment you walk out the door.
- Proprietary endlink limits strap options. The integrated bracelet design means you cannot easily put a NATO, leather two-piece, or rubber strap on the PRX without specialist hardware. This bothers some buyers more than they expect.
- Bracelet sizing is fiddly. Links are joined by screws (good — adjustable at home with a tool), but the screws are tiny and stripping them is common for inexperienced owners. Take it to a watchmaker for sizing if you're unsure.
- 3 Hz "slow" seconds. The reduced frequency (21,600 vph vs. 28,800 vph in some peer movements) means the seconds hand visibly sweeps at 6 ticks/second rather than 8. Some buyers expecting the smoother high-beat sweep find this a minor disappointment.
Tag Heuer Aquaracer Professional 300
- Sellita SW200-1 base at a $2,500–$5,000 band retail — many enthusiasts feel TAG Heuer charges a brand premium that the movement doesn't justify (Hamilton Khaki Field with similar movement architecture retails ~$700). The Aquaracer's price reflects brand positioning rather than movement engineering.
- 38-hour power reserve — modest by 2026 standards where peers (Tudor MT5402: 70h, Longines L888.5: 72h, ETA C07/H-10: 80h) offer significantly more reserve.
- 21mm lug width — unusual width limits aftermarket strap compatibility.
- Cyclops magnifier — polarising design element; some buyers love it, others find it dated.
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 AmazonTag Heuer
Aquaracer Professional 300
Choose the Tag Heuer Aquaracer Professional 300 if you value Automatic (ETA 2824-2 / Sellita SW200 base) technology, Swiss Made heritage, and 43mm proportions. At $2,500–$5,000, the Automatic Caliber 5 with 38 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Tissot PRX Powermatic 80 and Tag Heuer Aquaracer Professional 300 represent two distinct approaches to fine watchmaking — the Tissot bringing Swiss Made tradition while Tag Heuer 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.