Side by side

Oak & Oscar The Humboldt ExP-02vsOrient 75th Anniversary RA-AC0Q12L30B

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
75th Anniversary RA-AC0Q12L30B
Orient75th Anniversary RA-AC0Q12L30B
MSRP $405

At a glance

15 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
75th Anniversary RA-AC0Q12L30B39.9mm
Power Reserve
The Humboldt ExP-0256h
75th Anniversary RA-AC0Q12L30B40h
Water Resistance
The Humboldt ExP-02200m
75th Anniversary RA-AC0Q12L30B200m
MSRP
The Humboldt ExP-02$2,400
75th Anniversary RA-AC0Q12L30B$405

Full specifications

Case

6 specs
Category
Tool
Diver
Diameter
39.5mm
39.9mm
Thickness
12.4mm
12.8mm
Lug-to-Lug
46.8mm
46.5mm
Material
316L Stainless Steel
Stainless Steel
Caseback
Display
Solid

Crystal & Dial

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

Movement

5 specs
Caliber
Sellita SW300
F6722
Beat Rate
28,800 vph
21,600 vph
Power Reserve
56h
40h
Jewels
25
22
Complications
GMT, Chronograph
Date

Pricing

1 specs
MSRP
$2,400
$405

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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.

Orient 75th Anniversary RA-AC0Q12L30B

The Orient 75th Anniversary RA-AC0Q12L30B is widely praised for its classy, dressy aesthetic, beautiful periwinkle or light blue sunray dial with deep-relief radial grooves, and crisp engraved bezel numerals, all within a compact 39.9mm to 40mm case. Owners consider it a great value, with some noting it looks better in person and is destined to become a classic, punching above its price point. One owner finds the dial color too feminine for a dive watch and considered the dial craftsmanship inferior to the Presage Cocktail series, while another flags the lack of lume as a drawback. The bracelet clasp and end links are consistently considered a weak point, and the steel case is noted as less rounded than other Orient divers. The watch features 200m water resistance and a 46.5mm lug-to-lug measurement. Overall, owners rate the Orient 75th Anniversary RA-AC0Q12L30B highly for its stunning dial and compact size at the price.

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