Side-by-side comparison of specifications and features
Compare visual case presence and physical footprint on one shared wrist. Measure your top-down wrist width for a stronger result; lug-to-lug is used when the catalog has it.
Medium (6.7″)
Estimated top width: 56.7 mm
Preliminary range: 54.7–61.8 mm.
Watch A
Visual presence
DominantCase covers 85% of your modeled wrist width.
Physical footprint
Near the edgeEstimated clearance: 2.1 mm per side.
Watch B
Visual presence
BoldCase covers 71% of your modeled wrist width.
Physical footprint
Clear spaceEstimated clearance: 6.0 mm per side.
Proportional guide only: visual presence and physical footprint do not predict comfort. Weight, thickness, caseback shape, rigid lugs, strap stiffness, wrist-bone prominence, wearing tension, bezel design, and case curvature change how a watch actually wears. Non-round silhouettes use a verified family shape and catalog dimensions where available; missing case height or width is estimated from a conservative family aspect ratio.
Start with the specifications that meaningfully differ. Expand the complete table for reference details and missing-data context.
| Specification | Casio Edifice ECB-40 | Tissot PRX |
|---|---|---|
| Pricing | ||
| MSRPEdifice ECB-40 is $175 less at MSRP | $200 | $375 |
| New PriceEdifice ECB-40 is $188 less based on the current snapshot | $199 | $387 |
| Used Price (Low)PRX is $36.4 less at the low end | $374 | $338 |
| Used Price (High) | $528 | $1,549 |
| 30-Day Trend | ↑ +0.5% | ↓ -3.1% |
| Used Price Range | $374 - $528 | $338 - $1,549 |
| Identity | ||
| Style | Sports, Casual | Sports, Dress |
| Dimensions | ||
| DiameterPRX is 8mm smaller | 48mm | 40mm |
| Thickness | N/A | 10.4mm |
| Lug to Lug | 52.4mm | 44.6mm |
| Case | ||
| Crystal | Mineral Crystal | Sapphire Crystal |
| Dial | ||
| Dial Color | Black | Blue |
1 field is excluded from the differences view because one watch lacks comparable data. Use “All specs” to inspect those gaps.
This Casio Edifice ECB-40 vs Tissot PRX comparison is less about a universal winner and more about wrist presence versus easier fit, entry price versus premium finishing or specs. Treat it as a value-versus-upgrade decision — confirm the extra spend solves a problem you will notice every week.
Bottom line
Fit is a real separator here — compare case width and lug-to-lug before deciding, especially if wrist comfort matters more than headline features. Choose Casio Edifice ECB-40 if you prefer more dial presence and a larger case feel; choose Tissot PRX if you want a smaller case footprint on the wrist.
Choose Casio Edifice ECB-40 when
Casio Edifice ECB-40 is a better fit for buyers who want more wrist presence, low-maintenance daily wear, sports styling.
Choose Tissot PRX when
Tissot PRX is a better fit for smaller wrists, low-maintenance daily wear, sports styling.
Movement and upkeep
Casio Edifice ECB-40: quartz movement
Tissot PRX: quartz movement
Both use the same movement type, so maintenance differences are limited and fit or feature details should decide the purchase.
Size and wearability
Casio Edifice ECB-40: 48mm · L2L 52.4mm
Tissot PRX: 40mm · L2L 44.6mm · 130g
Fit is a real separator here — compare case width and lug-to-lug before deciding, especially if wrist comfort matters more than headline features.
Water resistance
Casio Edifice ECB-40: 100m
Tissot PRX: 100m
Water resistance is similar on paper, so focus on fit, features, and price instead.
Price and value
Casio Edifice ECB-40: $199
Tissot PRX: $375
There is a real price gap here — treat the more expensive option as an upgrade decision and confirm whether the extra spend buys something you will notice in weekly use.
Style and use case
Casio Edifice ECB-40: sports
Tissot PRX: sports
Both lean into a similar sports use case — the choice is more about fit, features, and price than category.
Crystal and materials
Casio Edifice ECB-40: mineral crystal · steel
Tissot PRX: sapphire crystal · steel
Crystal choice can change long-term wear expectations — one may prioritize scratch resistance while the other keeps cost or vintage feel in check.
Casio Edifice ECB-40 is often the value play at current pricing, while Tissot PRX makes more sense if you will use its extra features regularly.
There is a real price gap here — treat the more expensive option as an upgrade decision and confirm whether the extra spend buys something you will notice in weekly use.
Check current deals on Amazon and eBay using the buttons below — listing prices, seller quality, and condition can change quickly.
Prices change often, so compare the latest listings and condition options before you buy.
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Casio Edifice ECB-40
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Tissot PRX
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Tissot PRX — it is 44.6mm lug-to-lug versus 52.4mm, and lug-to-lug is what decides whether a watch overhangs a smaller wrist.
They are rated the same, so water resistance will not decide this. Choose on strap material and how much you mind scratching the case.
Casio Edifice ECB-40 is the value pick at roughly $176 less. Pay more only if a specific difference above matters to you — otherwise the cheaper one is the smarter buy. Confirm live listings, since marketplace pricing moves.
Evidence & Method
This page currently relies on normalized catalog fields and calculated differences. No external reviewer observation is used in its verdict.
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