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
ModerateCase covers 67% of your modeled wrist width.
Physical footprint
Clear spaceEstimated clearance: 6.8 mm per side.
Watch B
Visual presence
ModerateCase covers 68% of your modeled wrist width.
Physical footprint
Clear spaceEstimated clearance: 5.1 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 Prospex | Seiko Prospex |
|---|---|---|
| Pricing | ||
| MSRPProspex is $400 less at MSRP | $750 | $350 |
| New PriceProspex is $299.8 less based on the current snapshot | $869 | $569 |
| Used Price (Low)Prospex is $43.2 less at the low end | $318 | $361 |
| Used Price (High) | $1,349 | $1,749 |
| 30-Day Trend | ↑ +64.1% | ↓ -22.2% |
| Used Price Range | $318 - $1,349 | $361 - $1,749 |
| Identity | ||
| Style | Diver, Tool, Sports | Diver, Tool |
| Dimensions | ||
| DiameterProspex is 0.5mm smaller | 38mm | 38.5mm |
| Lug to Lug | 43mm | 46.5mm |
| Movement | ||
| Movement | Automatic | Solar Powered |
| Case | ||
| Crystal | Hardlex | Sapphire Crystal |
If you are deciding between Seiko Prospex SKX013 and Seiko Prospex SNE573 (solar diver), the real decision is usually about mechanical feel versus low-maintenance convenience, wrist presence versus easier fit, entry price versus premium finishing or specs. They both touch the diver and tool use case, so smaller spec differences can matter more than brand preference.
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 Prospex SKX013 if you prefer a mechanical watch experience and do not mind more upkeep; choose Seiko Prospex SNE573 (solar diver) if you want a lower-maintenance daily watch.
Choose Seiko Prospex SKX013 when
Seiko Prospex SKX013 is a better fit for mechanical-watch enthusiasts, diver styling.
Choose Seiko Prospex SNE573 (solar diver) when
Seiko Prospex SNE573 (solar diver) is a better fit for low-maintenance daily wear, diver styling.
Movement and upkeep
Seiko Prospex SKX013: automatic movement
Seiko Prospex SNE573 (solar diver): solar movement
Seiko Prospex SKX013 uses a automatic movement, while Seiko Prospex SNE573 (solar diver) uses a solar movement — that changes day-to-day ownership, upkeep, and the overall feel on the wrist.
Size and wearability
Seiko Prospex SKX013: 38mm · L2L 43mm
Seiko Prospex SNE573 (solar diver): 38.5mm · L2L 46.5mm
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 Prospex SKX013: 200m
Seiko Prospex SNE573 (solar diver): 200m
Water resistance is similar on paper, so focus on fit, features, and price instead.
Price and value
Seiko Prospex SKX013: $750
Seiko Prospex SNE573 (solar diver): $350
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
Seiko Prospex SKX013: diver
Seiko Prospex SNE573 (solar diver): diver
Both lean into a similar diver use case — the choice is more about fit, features, and price than category.
Crystal and materials
Seiko Prospex SKX013: Hardlex crystal · steel
Seiko Prospex SNE573 (solar diver): 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.
Seiko Prospex SNE573 (solar diver) is often the value play at current pricing, while Seiko Prospex SKX013 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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Seiko Prospex
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Seiko Prospex
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Quartz and solar models are usually easier for grab-and-go use, while automatic and manual watches appeal more to buyers who enjoy the mechanical side of watch ownership.
Seiko Prospex SKX013 — it is 43mm lug-to-lug versus 46.5mm, 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 Prospex SNE573 (solar diver) is the value pick at roughly $400 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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