Tissot PRX Powermatic 80 vs Longines Master Collection Moonphase
Tissot's timepiece meets Longines's dress watch
Quick Verdict
The Tissot PRX Powermatic 80 (~$850) offers In-House Automatic (ETA C07.111 base) precision at $2,150 less than the Longines Master Collection Moonphase (~$3,000). The Master Collection Moonphase counters with Swiss Made craftsmanship and 30m (3 ATM) water resistance. Both are exceptional watches for their respective price points.
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Specifications Compared
| Feature | Tissot PRX Powermatic 80 | Longines Master Collection Moonphase |
|---|---|---|
| Price | ~$850 | ~$3,000 |
| Case Size | 40mm | 40mm |
| Movement | Automatic Powermatic 80.111 | Automatic Caliber L899 |
| Caliber Type | In-House Automatic (ETA C07.111 base) | Automatic (ETA A31.L91 base) |
| Power Reserve | 80 Hours | 72 Hours |
| Water Resistance | 100m (10 ATM) | 30m (3 ATM) |
| Crystal | Scratch-resistant Sapphire | Sapphire Crystal |
| Case Material | 316L Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Tissot's design language vs Longines's approach
Movement & Performance
Automatic Powermatic 80.111 vs Automatic Caliber L899
Wearability & Fit
40mm vs 40mm — different wrist presence
Value & Cost of Ownership
Tissot is $2,150 more affordable
Water Resistance
100m (10 ATM) vs 30m (3 ATM)
Materials Face-Off
| Component | Tissot PRX Powermatic 80 | Longines Master Collection Moonphase |
|---|---|---|
| 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 (standard mid-range Swiss spec). |
| 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 | Synthetic sapphire grown via Verneuil process, Mohs 9, anti-reflective coating on interior. Mohs 9 |
| Lume specification | Super-LumiNova grade BGW9 (blue-green daylight tone, blue emission in some variants) or C3 (yellow-green) depending on dial colour family. Glow durati | None (dress watch by design). |
| Bracelet alloy | Stainless steel 316L matching the case. | Barleycorn guilloché — fine textured pattern resembling barley seed heads, machine-engraved or stamped into the dial brass disc. One of horology's cl |
| Hand finishing | — | Blued steel via thermal treatment (heat-blued) or chemical bluing process. |
Cost of Ownership Compared
The Tissot PRX Powermatic 80 saves you $2,055 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 Longines Master Collection Moonphase if…
- Weekend warriors — 72-hour power reserve means it survives two days off the wrist
- Those who prioritize scratch resistance — sapphire crystal
- Dress watch seekers who want understated elegance
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.
Longines Master Collection Moonphase
- ETA A31 base at $2,450 — though Longines-exclusive, the architecture is shared platform. Some buyers expect in-house at this price.
- 30m water resistance — strictly dress watch use; no swimming, no shower
- Moonphase indication is rough — like most "simple" moonphase movements, the 29.5-day approximation is imprecise vs. actual 29.53-day lunar cycle (requires ~1-day adjustment every 2.5 years)
- 3.5 Hz frequency is unusual — not as smooth as 4 Hz peers
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 ~$850, it delivers Automatic Powermatic 80.111 with 80 Hours power reserve.
Check Price on AmazonLongines
Master Collection Moonphase
Choose the Longines Master Collection Moonphase if you value Automatic (ETA A31.L91 base) technology, Swiss Made heritage, and 40mm proportions. At ~$3,000, the Automatic Caliber L899 with 72 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Tissot PRX Powermatic 80 and Longines Master Collection Moonphase represent two distinct approaches to fine watchmaking — the Tissot bringing Swiss Made tradition while Longines delivers Swiss Made engineering.
Frequently Asked Questions
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