Tissot PRX Powermatic 80 vs Omega Speedmaster Professional
Tissot's timepiece meets Omega's chronograph
Quick Verdict
The Tissot PRX Powermatic 80 ($500–$1,000) offers In-House Automatic (ETA C07.111 base) precision in the tier below the Omega Speedmaster Professional ($5,000–$10,000). The PRX Powermatic 80 measures 40mm and is rated 100m (10 ATM). The Speedmaster Professional counters with Swiss Made craftsmanship and 50m (5 ATM) water resistance. Both are exceptional watches for their respective tiers.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Tissot PRX Powermatic 80 | Omega Speedmaster Professional |
|---|---|---|
| Price | $500–$1,000 | $5,000–$10,000 |
| Case Size | 40mm | 42mm |
| Movement | Automatic Powermatic 80.111 | Manual-Winding Caliber 3861 |
| Caliber Type | In-House Automatic (ETA C07.111 base) | In-House Manual-Winding Manufacture (Co-Axial) |
| Power Reserve | 80 Hours | 50 Hours |
| Water Resistance | 100m (10 ATM) | 50m (5 ATM) |
| Crystal | Scratch-resistant Sapphire | Hesalite or Sapphire |
| Case Material | 316L Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Tissot's design language vs Omega's approach
The Tissot PRX Powermatic 80 features a 316L Stainless Steel case at 40mm with Scratch-resistant Sapphire protection. The Omega Speedmaster Professional offers Stainless Steel construction at 42mm with Hesalite or Sapphire. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Powermatic 80.111 vs Manual-Winding Caliber 3861
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 Speedmaster Professional uses the Manual-Winding Caliber 3861 (In-House Manual-Winding Manufacture (Co-Axial), 50 Hours reserve) at 21,600 vph (3 Hz). The PRX Powermatic 80 edges ahead on power reserve.
Wearability & Fit
40mm vs 42mm — different wrist presence
At 40mm, the PRX Powermatic 80 wears more compactly on smaller wrists compared to the Speedmaster Professional at 42mm. Water resistance differs: 100m (10 ATM) vs 50m (5 ATM).
Value & Cost of Ownership
Tissot sits in the lower tier
The Tissot PRX Powermatic 80 sits at $500–$1,000 and the Omega Speedmaster Professional at $5,000–$10,000. On the specs that outlast any price: the PRX Powermatic 80 uses Scratch-resistant Sapphire with 80 Hours, against Hesalite or Sapphire and 50 Hours on the Speedmaster Professional. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 50m (5 ATM)
The PRX Powermatic 80 is rated to 100m (10 ATM) while the Speedmaster Professional handles 50m (5 ATM). The PRX Powermatic 80 is better suited for water activities.
Materials Face-Off
| Component | Tissot PRX Powermatic 80 | Omega Speedmaster Professional |
|---|---|---|
| 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 | Manual-wind chronograph with Co-Axial escapement (George Daniels design, licensed 1999). Si14 silicon balance spring, free-sprung balance, 234 components, 26 jewels |
| 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 | Hardened acrylic (Mohs ~2–3) with embossed central Omega logo — the NASA flight-qualified specification Mohs 2.5 |
| 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. | Omega's proprietary Si14 silicon hairspring — in series production since 2008 |
| Bracelet alloy | Stainless steel 316L matching the case. | Fixed black anodized aluminum with white tachymeter scale. Preserves the "DOT OVER NINETY" detail from the Apollo 11–era watches |
| Stainless Steel Case | — | 42mm asymmetric case with integrated crown guards (added in 1964 for the 105.012 — the reference Buzz Aldrin wore on the Moon) |
Cost of Ownership Compared
The Tissot PRX Powermatic 80 saves you $6,769 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 Omega Speedmaster Professional if…
- History and heritage enthusiasts — the only watch worn on the Moon, with NASA documentation to prove it
- METAS Master Chronometer accuracy at sub-$8,000 — antimagnetic to 15,000 gauss, 0/+5 sec/day
- Chronograph lovers — the manual-wind ritual and hand-wound feel is deeply satisfying
- Value seekers at grey market $5,200–$5,500 — one of the cheapest 5-figure-quality chronographs from a top-tier maison
- Available off-the-shelf — walk into any Omega boutique and buy one today (no Rolex-style waitlist)
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.
Omega Speedmaster Professional
- Hesalite scratches — acrylic at Mohs ~2–3 is dramatically softer than sapphire. Polishes out with PolyWatch in 5 minutes, but it's high-maintenance for desk-diving wear
- No screw-down crown, 50m water resistance — this is a NASA chronograph, not a dive watch. Shower-safe, swim-cautious, never deep water
- Manual wind — not for the set-and-forget buyer. Daily winding is part of the ritual; some find it charming, some find it inconvenient
- Wears thick at 13.18mm with a proud bezel — reads as 43–44mm visually because of the broad lug profile
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 AmazonOmega
Speedmaster Professional
Choose the Omega Speedmaster Professional if you value In-House Manual-Winding Manufacture (Co-Axial) technology, Swiss Made heritage, and 42mm proportions. At $5,000–$10,000, the Manual-Winding Caliber 3861 with 50 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Tissot PRX Powermatic 80 and Omega Speedmaster Professional represent two distinct approaches to fine watchmaking — the Tissot bringing Swiss Made tradition while Omega delivers Swiss Made engineering.
Frequently Asked Questions
More Comparisons
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.