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
CompactCase covers 49% of your modeled wrist width.
Physical footprint
Clear spaceEstimated clearance: 11.8 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.
Start with the specifications that meaningfully differ. Expand the complete table for reference details and missing-data context.
| Specification | Seiko 5 Sports | Seiko 5 Sports |
|---|---|---|
| Pricing | ||
| MSRP5 Sports is $55 less at MSRP | $350 | $295 |
| New Price5 Sports is $160.6 less based on the current snapshot | $290 | $451 |
| Used Price (Low)5 Sports is $164 less at the low end | $143 | $307 |
| Used Price (High) | $390 | $471 |
| 30-Day Trend | ↑ +3.1% | ↓ -14.7% |
| Used Price Range | $143 - $390 | $307 - $471 |
| Dimensions | ||
| Diameter5 Sports is 12mm smaller | 28mm | 40mm |
| Thickness5 Sports is 0.3mm thinner | 11.2mm | 11.5mm |
| Weight5 Sports is 73g lighter | 69g | 142g |
| Lug Width | 14mm | 20mm |
| Lug to Lug | 33.1mm | 44.6mm |
| Dial | ||
| Dial Color | Black | Blue |
This Seiko 5 Sports 28mm vs Seiko 5 Sports SRPE57 comparison is less about a universal winner and more about wrist presence versus easier fit. Start with fit first — case width and lug-to-lug usually matter more than secondary features if wrist comfort is a concern.
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 Seiko 5 Sports 28mm if you want a smaller case footprint on the wrist; choose Seiko 5 Sports SRPE57 if you prefer more dial presence and a larger case feel.
Choose Seiko 5 Sports 28mm when
Seiko 5 Sports 28mm is a better fit for smaller wrists, mechanical-watch enthusiasts, sports styling.
Choose Seiko 5 Sports SRPE57 when
Seiko 5 Sports SRPE57 is a better fit for buyers who want more wrist presence, mechanical-watch enthusiasts, sports styling.
Movement and upkeep
Seiko 5 Sports 28mm: automatic movement
Seiko 5 Sports SRPE57: automatic movement
Both use the same movement type, so maintenance differences are limited and fit or feature details should decide the purchase.
Size and wearability
Seiko 5 Sports 28mm: 28mm · L2L 33.1mm · 69g
Seiko 5 Sports SRPE57: 40mm · L2L 44.6mm · 142g
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
Seiko 5 Sports 28mm: 100m
Seiko 5 Sports SRPE57: 100m
Water resistance is similar on paper, so focus on fit, features, and price instead.
Price and value
Seiko 5 Sports 28mm: $290
Seiko 5 Sports SRPE57: $295
These two often land in a similar price band — which usually means fit, features, and current deal quality matter more than the sticker price.
Style and use case
Seiko 5 Sports 28mm: sports
Seiko 5 Sports SRPE57: sports
Both lean into a similar sports use case — the choice is more about fit, features, and price than category.
Crystal and materials
Seiko 5 Sports 28mm: Hardlex crystal · steel
Seiko 5 Sports SRPE57: Hardlex crystal · steel
Materials are broadly similar, so finish, fit, and price will matter more than the materials list alone.
Seiko 5 Sports 28mm usually offers the lower entry price — confirm current listings because marketplace pricing can move quickly.
These two often land in a similar price band — which usually means fit, features, and current deal quality matter more than the sticker price.
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.
WatchCompared may earn a commission from qualifying purchases through affiliate links. This does not change your price.
Seiko 5 Sports
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
Seiko 5 Sports
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
Seiko 5 Sports 28mm — it is 33.1mm lug-to-lug versus 44.6mm, 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.
Seiko 5 Sports 28mm is the value pick at roughly $5 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.
Compare Watches
Start a new multi-watch comparison
Compare Watch Prices
US-focused price comparison workflow
Watch Fit Chart
Size and wrist-fit guidance
Related Budget Page
Compare similar watches in the same price band
Watch Buying Guides
Read movement, fit, and buying guides before deciding
Smartwatch Compare Hub
Compare Apple, Garmin, Samsung, and more if you are cross-shopping smartwatches
Seiko 5 Sports GMT vs Seiko 5 Sports SRPE57
tier2High-intent comparison page
Seiko 5 Sports 28mm vs Seiko 5 Sports GMT
tier2High-intent comparison page
Seiko 5 Sports 28mm vs Seiko Prospex SPB155 (Baby Alpinist)
tier2High-intent comparison page
Seiko 5 Sports SRPE57 vs Seiko Prospex SPB155 (Baby Alpinist)
tier2High-intent comparison page
Seiko 5 Sports 28mm vs Seiko Alpinist
tier2High-intent comparison page
Seiko 5 Sports SRPE57 vs Seiko Alpinist
tier2High-intent comparison page
Continue comparing specs and pricing, or start a new shortlist with the comparison tool and browse pages.
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
You can compare up to 10 watches. Browse watches and click "Add to Compare" to add more.
