Side by side

Oak & Oscar The Humboldt ExP-02vsLongines LONGINES SPIRIT FLYBACK TITANIUM

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

The Humboldt ExP-02
Oak & OscarThe Humboldt ExP-02
MSRP $2,400
LONGINES SPIRIT FLYBACK TITANIUM
LonginesLONGINES SPIRIT FLYBACK TITANIUM
MSRP $5,900

At a glance

15 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
LONGINES SPIRIT FLYBACK TITANIUM42mm
Power Reserve
The Humboldt ExP-0256h
LONGINES SPIRIT FLYBACK TITANIUM40h
Water Resistance
The Humboldt ExP-02200m
LONGINES SPIRIT FLYBACK TITANIUM100m
MSRP
The Humboldt ExP-02$2,400
LONGINES SPIRIT FLYBACK TITANIUM$5,900

Full specifications

Case

8 specs
Category
Tool
Chronograph
Diameter
39.5mm
42mm
Thickness
12.4mm
17mm
Lug-to-Lug
46.8mm
49.5mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Titanium
Water Resistance
200m
100m
Caseback
Display
Solid

Crystal & Dial

3 specs
Crystal Shape
Double-domed
Flat
Dial Color
Grey
Anthracite
Lume
Super-LumiNova BGW9
None

Movement

3 specs
Caliber
Sellita SW300
L791.4
Power Reserve
56h
40h
Complications
GMT, Chronograph
None

Pricing

1 specs
MSRP
$2,400
$5,900

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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.

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.

LONGINES SPIRIT FLYBACK TITANIUM

The LONGINES SPIRIT FLYBACK TITANIUM is widely praised for its luxurious finishing on titanium, attractive anthracite dial with gold and red accents, and precise COSC-certified L791.4 movement. Owners and reviewers consistently highlight its value as a flyback chronograph with a 68-hour power reserve and 100-meter water resistance. However, its 17mm case thickness is a significant concern for wearability, particularly under sleeves, with some suggesting alternative strap options. On balance, owners and reviewers rate the LONGINES SPIRIT FLYBACK TITANIUM highly for its finishing and value, despite the noted thickness.

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