Doxa SUB 300 Professional vs Doxa SUB 300T

Side-by-side comparison of specifications and features

DoxaSUB 300 Professional

SUB300

DoxaSUB 300T

300T

Key Differences

Best Value

Doxa SUB 300T (300T)

Starting from $2,524

Best Water Resistance

Doxa SUB 300T (300T)

1200m (4x more)

Biggest Price Drop

Doxa SUB 300T (300T)

-3.9% in 30 days

Price Comparison

Doxa SUB 300 Professional

MSRP

$2,890

New

$5,491

Used

$2,379

Doxa SUB 300T

MSRP

$3,750

New

$2,524

Used

$1,750

MSRP New (Amazon) Used (eBay)

Comparison of Doxa SUB 300 Professional, Doxa SUB 300T
Specification	Doxa SUB 300 Professional	Doxa SUB 300T
Pricing
MSRP	$2,890	$3,750
New Price	$5,491	$2,524
Used Price (Low)	$2,379	$1,750
Used Price (High)	$3,250	$4,999
30-Day Trend	↑ +13.8%	↓ -3.9%
Used Price Range	$2,379 - $3,250	$1,750 - $4,999
Identity
Reference	SUB300	300T
Nickname	N/A	N/A
Style	Diver, Luxury, Vintage	Diver, Tool
Release Era	2020s	2010s
Dimensions
Diameter	42.5mm	42.5mm
Thickness	13.4mm	N/A
Lug Width	20mm	N/A
Lug to Lug	45mm	N/A
Movement
Movement	Automatic	Automatic
Power Reserve / Battery	N/A	N/A
Accuracy	N/A	N/A
Case
Case Material	Stainless Steel	Stainless Steel
Crystal	Sapphire Crystal	Sapphire Crystal
Water Resistance	300m (diving)	1200m (diving)
Bezel	Unidirectional rotating	Unidirectional rotating
Dial
Dial Color	Orange	Orange/Black
Luminous	Yes	Yes
Community
Review Rating	N/A	N/A
In Collections	N/A	N/A
On Wishlists	N/A	N/A
Forum Threads	N/A	N/A

Quick Summary

If you are deciding between Doxa SUB 300 Professional and Doxa SUB 300T, the real decision is usually about wrist presence versus easier fit, water-ready utility versus dressier everyday wear. Start with fit first — case width and lug-to-lug usually matter more than secondary features if wrist comfort is a concern.

How to choose

The biggest practical difference is usually movement and upkeep. Start with wrist fit and movement preference, then use water resistance and price to break the tie.

Doxa SUB 300 Professional

Doxa SUB 300 Professional is a better fit for mechanical-watch enthusiasts, diver styling.

Doxa SUB 300T

Doxa SUB 300T is a better fit for mechanical-watch enthusiasts, diver styling.

Key Differences

Movement and upkeep

Doxa SUB 300 Professional: automatic movement

Doxa SUB 300T: 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: 42.5mm

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

Doxa SUB 300 Professional: 300m

Doxa SUB 300T: 1200m

Water resistance is a meaningful separator here — the higher-rated option gives more flexibility for swimming or rougher daily use.

Price and value

Doxa SUB 300 Professional: $2,890

Doxa SUB 300T: $2,524

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

Doxa SUB 300 Professional: diver

Doxa SUB 300T: 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: sapphire crystal · steel

Materials are broadly similar, so finish, fit, and price will matter more than the materials list alone.

Choose Doxa SUB 300 Professional If...

Its fit, feature mix, and price align better with your daily use.

Choose Doxa SUB 300T If...

Swimming, beach use, or tougher daily wear is part of the plan.

Price and Value Notes

Doxa SUB 300T 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.

Where to Check Deals

Check current deals on Amazon and eBay using the buttons below — listing prices, seller quality, and condition can change quickly.

Check current deals on Amazon and eBay

Prices change often, so compare the latest listings and condition options before you buy.

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Doxa SUB 300 Professional

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $2738 · Live listings

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Doxa SUB 300T

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $2500 · Live listings

Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.

Comparison FAQ

Which one is better for smaller wrists?

Start with case width and lug-to-lug. The watch that looks smaller on paper is often the safer choice, but lug shape and thickness still affect how it wears.

Which is better for swimming or rough daily wear?

Use the water resistance row as the first filter. Higher ratings generally give more flexibility for swimming and water exposure, but strap choice and overall condition still matter.

Should I choose based on price alone?

Price matters, but the better buy is the watch that matches your fit, feature priorities, and use case. Check live listings first, then decide whether the price gap actually changes the ownership experience.