Casio Pro Trek PRW3500T-7 vs Tag Heuer Aquaracer Professional 300
Two divers compared — $250–$500 vs $2,500–$5,000
Quick Verdict
The Casio Pro Trek PRW3500T-7 ($250–$500) offers Tough Solar Quartz, Multi-Band 6 precision in the tier below the Tag Heuer Aquaracer Professional 300 ($2,500–$5,000). The Pro Trek PRW3500T-7 measures 56.9 × 53.4 × 14.8mm and is rated 200m (20 ATM). The Aquaracer Professional 300 counters with Swiss Made craftsmanship and 300m (30 ATM) water resistance. Both are exceptional divers 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 | Casio Pro Trek PRW3500T-7 | Tag Heuer Aquaracer Professional 300 |
|---|---|---|
| Price | $250–$500 | $2,500–$5,000 |
| Case Size | 56.9 × 53.4 × 14.8mm | 43mm |
| Movement | Tough Solar (Solar Quartz), Radio-Controlled | Automatic Caliber 5 |
| Caliber Type | Tough Solar Quartz, Multi-Band 6 | Automatic (ETA 2824-2 / Sellita SW200 base) |
| Power Reserve | Tough Solar (Rechargeable) | 38 Hours |
| Water Resistance | 200m (20 ATM) | 300m (30 ATM) |
| Crystal | Mineral Glass | Sapphire with Anti-Reflective Coating |
| Case Material | Resin / Stainless Steel, Titanium Bracelet | Stainless Steel |
| Origin | Casio (Japan) | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Tag Heuer's approach
The Casio Pro Trek PRW3500T-7 features a Resin / Stainless Steel, Titanium Bracelet case at 56.9 × 53.4 × 14.8mm with Mineral Glass 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
Tough Solar (Solar Quartz), Radio-Controlled vs Automatic Caliber 5
The Pro Trek PRW3500T-7 runs the Tough Solar (Solar Quartz), Radio-Controlled (Tough Solar Quartz, Multi-Band 6, Tough Solar (Rechargeable) power reserve) at standard 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 Aquaracer Professional 300 offers a longer power reserve.
Wearability & Fit
56.9 × 53.4 × 14.8mm vs 43mm — different wrist presence
At 56.9 × 53.4 × 14.8mm, the Pro Trek PRW3500T-7 has a bolder wrist presence compared to the Aquaracer Professional 300 at 43mm. Water resistance differs: 200m (20 ATM) vs 300m (30 ATM).
Value & Cost of Ownership
Casio sits in the lower tier
The Casio Pro Trek PRW3500T-7 sits at $250–$500 and the Tag Heuer Aquaracer Professional 300 at $2,500–$5,000. On the specs that outlast any price: the Pro Trek PRW3500T-7 uses Mineral Glass with Tough Solar (Rechargeable), 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
200m (20 ATM) vs 300m (30 ATM)
The Pro Trek PRW3500T-7 is rated to 200m (20 ATM) while the Aquaracer Professional 300 handles 300m (30 ATM). The Aquaracer Professional 300 offers superior water resistance.
Our Verdict
Casio
Pro Trek PRW3500T-7
Choose the Casio Pro Trek PRW3500T-7 if you prioritize Tough Solar Quartz, Multi-Band 6 engineering, Casio (Japan) craftsmanship, and 200m (20 ATM) water resistance. At $250–$500, it delivers Tough Solar (Solar Quartz), Radio-Controlled with Tough Solar (Rechargeable) 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 Casio Pro Trek PRW3500T-7 and Tag Heuer Aquaracer Professional 300 represent two distinct approaches to the diver category — the Casio bringing Casio (Japan) tradition while Tag Heuer delivers Swiss Made engineering.
Frequently Asked Questions
More Comparisons
Tag Heuer Carrera Chronograph vs Casio Pro Trek PRW3500T-7
Tag Heuer's chronograph meets Casio's diver
Tag Heuer Carrera Chronograph vs Tag Heuer Aquaracer Professional 300
Tag Heuer's chronograph meets Tag Heuer's diver
Tissot PRX Powermatic 80 vs Casio Pro Trek PRW3500T-7
Tissot's timepiece meets Casio's diver
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.