Side by side

Oak & Oscar The Humboldt ExP-02vsSinn T50 GBDR

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.

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.

Sinn T50 GBDR

The Sinn T50 GBDR features a titanium case with a GoldBronze bezel and matte black dial, presenting a two-tone toolish aesthetic that reviewers find appealing. The GoldBronze alloy offers improved skin compatibility and corrosion resistance, developing patina slower than standard bronze. Reviewers note a stamped clasp that can come loose and suggest the price point may be high for some Sinn enthusiasts.

At a glance

19 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
T50 GBDR41mm
Power Reserve
The Humboldt ExP-0256h
T50 GBDR38h
Water Resistance
The Humboldt ExP-02200m
T50 GBDR500m
MSRP
The Humboldt ExP-02$2,400
T50 GBDR$4,428

Full specifications

Case

8 specs
Category
Tool
Diver
Diameter
39.5mm
41mm
Thickness
12.4mm
12.3mm
Lug-to-Lug
46.8mm
Material
316L Stainless Steel
Titanium
Finish
bead-blasted
Water Resistance
200m
500m
Caseback
Display

Crystal & Dial

5 specs
Crystal Shape
Double-domed
AR Coating
Underside
Dial Color
Grey
Black
Indices
Applied
Lume
Super-LumiNova BGW9
Luminescent

Movement

5 specs
Caliber
Sellita SW300-1
SW 300-1
Beat Rate
0 vph
28,800 vph
Power Reserve
56h
38h
Jewels
0
25
Complications
GMT, Chronograph
Date

Pricing

1 specs
MSRP
$2,400
$4,428
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