Side by side

Formex Essence ThirtyNinevsSpinnaker Dumas GMT

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

Essence ThirtyNine
FormexEssence ThirtyNine
MSRP $2,390
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

12 of 29 specs differ
Diameter
Essence ThirtyNine39mm
Dumas GMT44mm
Power Reserve
Essence ThirtyNine41h
Dumas GMT40h
Water Resistance
Essence ThirtyNine100m
Dumas GMT300m
MSRP
Essence ThirtyNine$2,390
Dumas GMT$399

Full specifications

Case

7 specs
Category
Dress
GMT
Diameter
39mm
44mm
Thickness
10mm
15mm
Lug-to-Lug
45mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

2 specs
Dial Color
Space Ghost
Blue
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Sellita SW200-1
Seiko NH34A
Power Reserve
41h
40h

Pricing

1 specs
MSRP
$2,390
$399

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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.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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