Side by side

Oak & Oscar The Humboldt 12-hrvsYema Skin Diver CMM.20

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

The Humboldt 12-hr
Oak & OscarThe Humboldt 12-hr
MSRP $1,750
Skin Diver CMM.20
YemaSkin Diver CMM.20
MSRP $2,372

At a glance

15 of 29 specs differ
Diameter
The Humboldt 12-hr39.5mm
Skin Diver CMM.2039.5mm
Power Reserve
The Humboldt 12-hr42 hoursh
Skin Diver CMM.2040h
Water Resistance
The Humboldt 12-hr200m
Skin Diver CMM.20200m
MSRP
The Humboldt 12-hr$1,750
Skin Diver CMM.20$2,372

Full specifications

Case

4 specs
Category
Tool
Diver
Thickness
12.4mm
11.5mm
Lug-to-Lug
46.8mm
47mm
Caseback
Solid screw-down
Solid

Crystal & Dial

5 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Double-domed
Flat
AR Coating
Underside
Inner
Dial Color
Grey
Black
Lume
Super-LumiNova
None

Movement

5 specs
Caliber
ETA 2892A2
Yema CMM.20
Beat Rate
4 vph
28,800 vph
Power Reserve
42 hoursh
40h
Jewels
21
25
Complications
GMT, Chronograph, Date
None

Pricing

1 specs
MSRP
$1,750
$2,372

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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 12-hr

Oak & Oscar The Humboldt 12-hr owners widely praise its comfortable, solid bracelet with screw links and tight end-link fit, along with its awesome sandwich dial featuring superb grain and crisp details. The 12-hour bezel is noted as excellent for tracking a second time zone, and the orange second hand adds a nice pop. One owner reports the watch has outstanding quality and a perfect fit on smaller wrists, while another notes its legibility and great presence on various straps. A reviewer describes it as a 40mm stainless steel tool watch with a matte, brushed finish and a sandwich dial, powered by an ETA 2892-A2 movement with a 42-hour power reserve. Some in the line report the lume could be brighter. On balance, owners and reviewers rate Oak & Oscar The Humboldt 12-hr highly for its build quality and versatile tool-watch design.

Yema Skin Diver CMM.20

Owners and reviewers widely praise the Yema Skin Diver CMM.20 for its vintage aesthetic, 39mm-39.5mm case size, and the in-house CMM.20 micro-rotor movement. The watch features a textured cream dial, sharp applied indices, and a satisfyingly over-engineered push-to-turn bi-directional bezel. The fully brushed bracelet with toolless micro-adjust clasp is highlighted as a significant improvement, though some note its extended lug-to-lug may challenge smaller wrists. Accuracy figures range from -3/+7 seconds per day to erratic results between 0 and -10 seconds per day, with a 70-hour power reserve. Some owners express concerns about the brand's QC reputation and the micro-rotor movement's performance, while one reviewer noted questionable finishing on a prototype's hour hand and a rattly clasp. Overall, owners and reviewers rate the Yema Skin Diver CMM.20 highly for its vintage styling and improved bracelet at the price.

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