Side by side

Oak & Oscar The Humboldt ExP-02vsZelos Helmsman 3

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
Helmsman 3
ZelosHelmsman 3
MSRP $529

At a glance

13 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
Helmsman 340mm
Power Reserve
The Humboldt ExP-0256h
Helmsman 340h
Water Resistance
The Humboldt ExP-02200m
Helmsman 3200m
MSRP
The Humboldt ExP-02$2,400
Helmsman 3$529

Full specifications

Case

5 specs
Category
Tool
Diver
Diameter
39.5mm
40mm
Thickness
12.4mm
11.5mm
Lug-to-Lug
46.8mm
40mm
Caseback
Display
Solid

Crystal & Dial

4 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Double-domed
Flat
Dial Color
Grey
SS - Frost
Lume
Super-LumiNova BGW9
None

Movement

3 specs
Caliber
Sellita SW300
Miyota 9015
Power Reserve
56h
40h
Complications
GMT, Chronograph
None

Pricing

1 specs
MSRP
$2,400
$529

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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.

Zelos Helmsman 3

Owners widely praise the Zelos Helmsman 3 for its exceptional finishing and polishing on the titanium case, with some noting it feels nicer than previous models. The unique Titanium Crystalline Dial and Damascus Titanium dial are frequently highlighted as aesthetically pleasing and head-turning features, especially considering the price point. The brushed beads of rice bracelet is described as fitting well, and the on-the-fly clasp is considered amazing. Lume is also noted as great, with lumed crowns being a positive observation. However, some owners report the watch can feel top-heavy with sharp edges, making it uncertain as a daily driver for some. The meteorite bezel is seen by one owner as not adding significant value, and the stock strap's keepers and stitching were considered to detract from the watch's appearance.

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