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
BoldCase covers 75% of your modeled wrist width.
Physical footprint
Clear spaceEstimated clearance: 5.8 mm per side.
Watch B
Visual presence
BoldCase covers 75% of your modeled wrist width.
Physical footprint
Clear spaceEstimated clearance: 5.8 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 | Doxa SUB 300 Professional | Doxa SUB 300T Professional |
|---|---|---|
| Pricing | ||
| MSRPSUB 300T Professional is $700 less at MSRP | $2,890 | $2,190 |
| Used Price (Low)SUB 300T Professional is $811.7 less at the low end | $2,612 | $1,800 |
| Used Price (High) | $3,250 | $4,599 |
| 30-Day Trend | ↓ -6.5% | ↓ -19.8% |
| Used Price Range | $2,612 - $3,250 | $1,800 - $4,599 |
| Identity | ||
| Style | Diver, Luxury, Vintage | Diver, Luxury |
| Case | ||
| Case Material | Stainless Steel | Titanium |
This Doxa SUB 300 Professional vs Doxa SUB 300T Professional comparison is less about a universal winner and more about fit, features, and current pricing. They both touch the diver and luxury use case, so smaller spec differences can matter more than brand preference.
Bottom line
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. Choose Doxa SUB 300 Professional if you are comfortable paying more for a stronger feature set; choose Doxa SUB 300T Professional if you want the lower current entry price.
Choose Doxa SUB 300 Professional when
Doxa SUB 300 Professional is a better fit for mechanical-watch enthusiasts, diver styling.
Choose Doxa SUB 300T Professional when
Doxa SUB 300T Professional is a better fit for mechanical-watch enthusiasts, diver styling.
Movement and upkeep
Doxa SUB 300 Professional: automatic movement
Doxa SUB 300T Professional: 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
Doxa SUB 300 Professional: 42.5mm · L2L 45mm
Doxa SUB 300T Professional: 42.5mm · L2L 45mm
Their size profiles are relatively close, so fit comes down to shape, weight, and how each watch sits on your wrist.
Water resistance
Doxa SUB 300 Professional: 300m
Doxa SUB 300T Professional: 300m
Water resistance is similar on paper, so focus on fit, features, and price instead.
Price and value
Doxa SUB 300 Professional: $2,890
Doxa SUB 300T Professional: $2,190
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
Doxa SUB 300 Professional: diver
Doxa SUB 300T Professional: diver
Both lean into a similar diver use case — the choice is more about fit, features, and price than category.
Crystal and materials
Doxa SUB 300 Professional: sapphire crystal · steel
Doxa SUB 300T Professional: sapphire crystal · titanium
Materials are broadly similar, so finish, fit, and price will matter more than the materials list alone.
Doxa SUB 300 Professional and Doxa SUB 300T Professional get compared constantly because both are diver/luxury watches, they are the same case width (42.5mm), they share the same automatic movement — so the spec sheet alone will not tell you which to buy.
Doxa SUB 300T Professional — Doxa SUB 300 Professional uses a steel case, Doxa SUB 300T Professional a titanium case — that changes both weight and how premium it feels.
Doxa SUB 300T Professional for most buyers — Doxa SUB 300 Professional uses a steel case, Doxa SUB 300T Professional a titanium case — that changes both weight and how premium it feels.
Doxa SUB 300T Professional is often the value play at current pricing, while Doxa SUB 300 Professional 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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Doxa SUB 300 Professional
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Doxa SUB 300T Professional
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Neither is clearly smaller: case width is 42.5mm vs 42.5mm and thickness 13.4mm vs 13.4mm. Pick on strap and looks instead — the size difference is not what will decide this for you.
They are rated the same, so water resistance will not decide this. Choose on strap material and how much you mind scratching the case.
Doxa SUB 300T Professional is the value pick at roughly $700 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.
Doxa SUB 300 Professional uses a steel case, Doxa SUB 300T Professional a titanium case — that changes both weight and how premium it feels. That is the difference you will notice day to day; the rest of the specs are close enough not to matter.
Doxa SUB 300T Professional for most buyers — Doxa SUB 300 Professional uses a steel case, Doxa SUB 300T Professional a titanium case — that changes both weight and how premium it feels.
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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