Side by side

Oak & Oscar The Humboldt ExP-02vsYema Rallygraf Meca-Quartz II

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
Rallygraf Meca-Quartz II
YemaRallygraf Meca-Quartz II
MSRP $450

At a glance

14 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
Rallygraf Meca-Quartz II40mm
Power Reserve
The Humboldt ExP-0256h
Rallygraf Meca-Quartz II40h
Water Resistance
The Humboldt ExP-02200m
Rallygraf Meca-Quartz II50m
MSRP
The Humboldt ExP-02$2,400
Rallygraf Meca-Quartz II$450

Full specifications

Case

6 specs
Category
Tool
Chronograph
Diameter
39.5mm
40mm
Thickness
12.4mm
11mm
Lug-to-Lug
46.8mm
Water Resistance
200m
50m
Caseback
Display
Solid

Crystal & Dial

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

Movement

4 specs
Caliber
Sellita SW300
Type
Automatic
Quartz
Power Reserve
56h
40h
Complications
GMT, Chronograph
None

Pricing

1 specs
MSRP
$2,400
$450

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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.

Yema Rallygraf Meca-Quartz II

Owners widely praise the Yema Rallygraf Meca-Quartz II for its cool retro 70s vibe, faithful reissue of a thin vintage design, and excellent build quality for its price, with particular commendation for its tactile pushers and top-notch Milanese strap. The watch is noted for its substantial, weighty feel and well-aligned indices, and the Seiko VK64 meca-quartz movement provides a sweeping chronograph hand. However, some owners find the meca-quartz ticking not very smooth, the left subdial a "useless" 24h indicator, and the watch overpriced compared to similar models. Several owners report disappointing alignment issues with indices, and one owner experienced the dial rotating slightly when chronograph pushers are depressed or when adjusting the time, with these issues not resolved during service. On balance, owners rate the Yema Rallygraf Meca-Quartz II highly for its retro styling and perceived value, despite some recurring quality control concerns.

From video reviewers

The watch's vintage-inspired design and value at its price point are consistently praised. The meca-quartz movement is mentioned as a feature by multiple reviewers.

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