Halios Seaforth IV vs Lorier Neptune Series IV Date

Side-by-side comparison of specifications and features

HaliosSeaforth IV

SFIV

LorierNeptune Series IV Date

Neptune-SIV-Date

Key Differences

Best Value

Lorier Neptune Series IV Date (Ref. Neptune-SIV-Date)

Starting from $499

Slimmest

Halios Seaforth IV (SFIV)

12.4mm thick

Biggest Price Drop

Halios Seaforth IV (SFIV)

-13.1% in 30 days

Price Comparison

Halios Seaforth IV

MSRP

$765

Used

$965

Lorier Neptune Series IV Date

MSRP

$499

Used

$650

MSRP New (Amazon) Used (eBay)

Comparison of Halios Seaforth IV, Lorier Neptune Series IV Date
Specification	Halios Seaforth IV	Lorier Neptune Series IV Date
Pricing
MSRP	$765	$499
New Price	N/A	N/A
Used Price (Low)	$965	$650
Used Price (High)	$1,395	$650
30-Day Trend	↓ -13.1%	0.0%
Used Price Range	$965 - $1,395	$650 - $650
Identity
Reference	SFIV	Neptune-SIV-Date
Nickname	N/A	N/A
Style	Diver, Vintage	Diver, Vintage
Release Era	2020s	2020s
Dimensions
Diameter	41mm	39mm
Thickness	12.4mm	12.7mm
Lug Width	20mm	20mm
Lug to Lug	46.5mm	46mm
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	Acrylic
Water Resistance	200m (diving)	200m (diving)
Bezel	Unidirectional rotating	Unidirectional rotating
Dial
Dial Color	Blue	Blue
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

This Halios Seaforth IV vs Lorier Neptune Series IV Date comparison is less about a universal winner and more about wrist presence versus easier fit, entry price versus premium finishing or specs. Treat it as a value-versus-upgrade decision — confirm the extra spend solves a problem you will notice every week.

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.

Halios Seaforth IV

Halios Seaforth IV is a better fit for buyers who want more wrist presence, mechanical-watch enthusiasts, diver styling.

Lorier Neptune Series IV Date

Lorier Neptune Series IV Date is a better fit for smaller wrists, mechanical-watch enthusiasts, diver styling.

Key Differences

Movement and upkeep

Halios Seaforth IV: automatic movement

Lorier Neptune Series IV Date: 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

Halios Seaforth IV: 41mm · L2L 46.5mm

Lorier Neptune Series IV Date: 39mm · L2L 46mm

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

Halios Seaforth IV: 200m

Lorier Neptune Series IV Date: 200m

Water resistance is similar on paper, so focus on fit, features, and price instead.

Price and value

Halios Seaforth IV: $765

Lorier Neptune Series IV Date: $499

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

Halios Seaforth IV: diver

Lorier Neptune Series IV Date: diver

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

Crystal and materials

Halios Seaforth IV: sapphire crystal · steel

Lorier Neptune Series IV Date: acrylic 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.

Choose Halios Seaforth IV If...

You prefer more dial presence and a larger case feel.
You are comfortable paying more for a stronger feature set.

Choose Lorier Neptune Series IV Date If...

You want a smaller case footprint on the wrist.
You want the lower current entry price.

Price and Value Notes

Lorier Neptune Series IV Date is often the value play at current pricing, while Halios Seaforth IV 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.

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Halios Seaforth IV

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $1050 · Live listings

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Lorier Neptune Series IV Date

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $650 · 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.