Longines HydroConquest 39 vs Traska Freediver III

Side-by-side comparison of specifications and features

LonginesHydroConquest 39

L3.740.4.56.6

TraskaFreediver III

Freediver-III

Key Differences

Best Value

Traska Freediver III (Ref. Freediver-III)

Starting from $735

Best Water Resistance

Longines HydroConquest 39 (Ref. L3.740.4.56.6)

300m (2x more)

Biggest Price Drop

Longines HydroConquest 39 (Ref. L3.740.4.56.6)

-24.6% in 30 days

Price Comparison

Longines HydroConquest 39

MSRP

$2,000

New

$1,094

Used

$1,052

Traska Freediver III

MSRP

$735

Used

$600

MSRP New (Amazon) Used (eBay)

Comparison of Longines HydroConquest 39, Traska Freediver III
Specification	Longines HydroConquest 39	Traska Freediver III
Pricing
MSRP	$2,000	$735
New Price	$1,094	N/A
Used Price (Low)	$1,052	$600
Used Price (High)	$1,380	$745
30-Day Trend	↓ -24.6%	0.0%
Used Price Range	$1,052 - $1,380	$600 - $745
Identity
Reference	L3.740.4.56.6	Freediver-III
Nickname	N/A	N/A
Style	Diver, Sports	Diver, Tool
Release Era	2020s	2020s
Dimensions
Diameter	39mm	39.8mm
Thickness	N/A	13.2mm
Lug Width	N/A	20mm
Lug to Lug	N/A	47.8mm
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)	200m (diving)
Bezel	Unidirectional rotating	Unidirectional rotating
Dial
Dial Color	Black	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 Longines HydroConquest 39 and Traska Freediver III, the real decision is usually about wrist presence versus easier fit, water-ready utility versus dressier everyday wear. They both touch the diver use case, so smaller spec differences can matter more than brand preference.

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.

Longines HydroConquest 39

Longines HydroConquest 39 is a better fit for mechanical-watch enthusiasts, diver styling.

Traska Freediver III

Traska Freediver III is a better fit for mechanical-watch enthusiasts, diver styling.

Key Differences

Movement and upkeep

Longines HydroConquest 39: automatic movement

Traska Freediver III: 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

Longines HydroConquest 39: 39mm

Traska Freediver III: 39.8mm · L2L 47.8mm

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

Longines HydroConquest 39: 300m

Traska Freediver III: 200m

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

Price and value

Longines HydroConquest 39: $1,094

Traska Freediver III: $735

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

Longines HydroConquest 39: diver

Traska Freediver III: diver

Both lean into a similar diver use case — the choice is more about fit, features, and price than category.

Crystal and materials

Longines HydroConquest 39: sapphire crystal · steel

Traska Freediver III: sapphire crystal · steel

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

Choose Longines HydroConquest 39 If...

Swimming, beach use, or tougher daily wear is part of the plan.
You are comfortable paying more for a stronger feature set.

Choose Traska Freediver III If...

You want the lower current entry price.

Price and Value Notes

Traska Freediver III is often the value play at current pricing, while Longines HydroConquest 39 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.

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.

WatchCompared may earn a commission from qualifying purchases through affiliate links. This does not change your price.

Longines HydroConquest 39

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $1084 · Live listings

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

Traska Freediver III

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $675 · 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.