Side by side

Formex Essence ThirtyNinevsZelos Helica Moonphase

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

Essence ThirtyNine
FormexEssence ThirtyNine
MSRP $2,390
Helica Moonphase
ZelosHelica Moonphase
MSRP $1,049

At a glance

8 of 29 specs differ
Diameter
Essence ThirtyNine39mm
Helica Moonphase39mm
Power Reserve
Essence ThirtyNine41h
Helica Moonphase40h
Water Resistance
Essence ThirtyNine100m
Helica Moonphase100m
MSRP
Essence ThirtyNine$2,390
Helica Moonphase$1,049

Full specifications

Case

3 specs
Category
Dress
Moonphase
Lug-to-Lug
45mm
39mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

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

Movement

2 specs
Caliber
Sellita SW200-1
Sellita SW288 Moonphase
Power Reserve
41h
40h

Pricing

1 specs
MSRP
$2,390
$1,049

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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.

Zelos Helica Moonphase

Owners widely praise the Zelos Helica Moonphase for its gorgeous aventurine dial, unique industrial-dress aesthetic, and comfortable wearability, with one owner calling it spectacular and another their favorite Zelos. The moonphase complication is frequently highlighted as beautiful, though some find the double moon distracting or the dial cluttered. A manual-wind movement combined with a screw-down crown is noted as a drawback by some, requiring adjustment and potentially feeling fragile when fully wound, while one owner reports a 43-hour power reserve. On balance, owners rate the Zelos Helica Moonphase highly for its stunning aventurine dial and unique design at its price point.

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