Side by side

Formex Essence ThirtyNinevsOak & Oscar The Humboldt ExP-02

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

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.

From video reviewers

The case suspension system enhances comfort and the COSC-certified movement is a strong feature. The bracelet exhibits noticeable rattle. Reviewers disagreed on the ideal case size, with some preferring the 39mm and others the 41mm.

Oak & Oscar The Humboldt ExP-02

Oak & Oscar The Humboldt ExP-02 is a 39.5mm stainless steel tool watch featuring a unique, layered aluminum "ghost dial" for legibility and 200m water resistance, powered by a Sellita SW300 movement. Its appeal is limited by a US$2,550 price and an extremely limited production of 20 pieces, with its experimental dial construction done in Chicago. Overall, reviewers highlight the endearing dial and in-house bezel production as key features of the Oak & Oscar Humboldt ExP-02.

At a glance

14 of 29 specs differ
Diameter
Essence ThirtyNine39mm
The Humboldt ExP-0239.5mm
Power Reserve
Essence ThirtyNine41h
The Humboldt ExP-0256h
Water Resistance
Essence ThirtyNine100m
The Humboldt ExP-02200m
MSRP
Essence ThirtyNine$2,390
The Humboldt ExP-02$2,400

Full specifications

Case

7 specs
Category
Dress
Tool
Diameter
39mm
39.5mm
Thickness
10mm
12.4mm
Lug-to-Lug
45mm
46.8mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
200m
Caseback
Solid
Display

Crystal & Dial

3 specs
Crystal Shape
Flat
Double-domed
Dial Color
Space Ghost
Grey
Lume
Super-LumiNova
Super-LumiNova BGW9

Movement

3 specs
Caliber
Sellita SW200-1
Sellita SW300-1
Power Reserve
41h
56h
Complications
None
GMT, Chronograph

Pricing

1 specs
MSRP
$2,390
$2,400
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