Side by side

Formex Essence ThirtyNinevsSeestern S456 GMT

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

Essence ThirtyNine
FormexEssence ThirtyNine
MSRP $2,390
S456 GMT
SeesternS456 GMT
MSRP $299

At a glance

15 of 29 specs differ
Diameter
Essence ThirtyNine39mm
S456 GMT41mm
Power Reserve
Essence ThirtyNine41h
S456 GMT41hh
Water Resistance
Essence ThirtyNine100m
S456 GMT200m
MSRP
Essence ThirtyNine$2,390
S456 GMT$299

Full specifications

Case

7 specs
Category
Dress
GMT
Diameter
39mm
41mm
Thickness
10mm
13mm
Lug-to-Lug
45mm
49mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Brushed + Polished
Water Resistance
100m
200m

Crystal & Dial

2 specs
Dial Color
Space Ghost
Sunray style, applied and Diamond cut Indices, C1 lume
Lume
Super-LumiNova
C1

Movement

5 specs
Caliber
Sellita SW200-1
Seiko NH34
Beat Rate
28,800 vph
3 vph
Power Reserve
41h
41hh
Jewels
25
24
Complications
None
GMT

Pricing

1 specs
MSRP
$2,390
$299

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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.

Seestern S456 GMT

Owners widely praise the Seestern S456 GMT for its exceptional value and finishing that exceeds expectations, with one owner noting its accuracy surpasses that of their Seiko 5. The dial displays a pearl-like rainbow effect. Some owners would prefer a bidirectional bezel over the current unidirectional one. The Seestern S456 GMT features an NH34 movement, a 39.5mm case, sapphire crystal, and an adjustable clasp. On balance, owners rate the Seestern S456 GMT highly for its impressive finishing and value proposition at its price point.

From video reviewers

The watch features stunning, detailed finishing that is difficult to top. Reviewers did not reach a consensus on any weaknesses.

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