Side by side

Formex Essence ThirtyNinevsHalios Seaforth IV

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Essence ThirtyNine
FormexEssence ThirtyNine
MSRP $2,390
Seaforth IV
HaliosSeaforth IV
MSRP $765

At a glance

12 of 29 specs differ
Diameter
Essence ThirtyNine39mm
Seaforth IV40mm
Power Reserve
Essence ThirtyNine41h
Seaforth IV40h
Water Resistance
Essence ThirtyNine100m
Seaforth IV200m
MSRP
Essence ThirtyNine$2,390
Seaforth IV$765

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
39mm
40mm
Thickness
10mm
12.4mm
Lug-to-Lug
45mm
46.5mm
Material
Stainless Steel
Titanium
Water Resistance
100m
200m

Crystal & Dial

3 specs
Crystal
Sapphire
Sapphire (double-domed)
Dial Color
Space Ghost
Blue
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Sellita SW200-1
Sellita SW200-2
Power Reserve
41h
40h

Pricing

1 specs
MSRP
$2,390
$765

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Formex Essence ThirtyNine

The Formex Essence ThirtyNine is praised for its impressive build quality and value, featuring a patented case suspension system for comfort and protection. It houses a COSC-certified Sellita SW200-1 movement with a 38-hour power reserve and a tool-free strap quick-release system. A minor inconvenience noted is the specific closing order of the clasp. On balance, reviewers rate the Formex Essence ThirtyNine highly for its comfortable wearability and excellent value at its price point.

Halios Seaforth IV

Owners widely praise the Halios Sunburst Blue for its perfect 40mm size, stunning sunburst dial, and excellent lume, with one owner calling it Halios's best effort and a potential "Omega AT killer." The ETA 2824 movement is noted as running smoothly, and the watch is considered a great value with strong resale. Some owners desire larger sizes or different dial colors, and one reviewer found the Sinn 556i more versatile. The sapphire bezel is described as tall and flat, which is a point of contention for some. Overall, owners rate the Halios Sunburst Blue highly for its design, size, and value.

From video reviewers

The sunburst blue dial is a standout feature. Limited water resistance is a shared concern.

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