Side by side

Oak & Oscar The Humboldt 12-hrvsPraesidus A-5 UDT

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
A-5 UDT
PraesidusA-5 UDT
MSRP $645

At a glance

16 of 29 specs differ
Diameter
The Humboldt 12-hr39.5mm
A-5 UDT38mm
Power Reserve
The Humboldt 12-hr42 hoursh
A-5 UDT40h
Water Resistance
The Humboldt 12-hr200m
A-5 UDT200m
MSRP
The Humboldt 12-hr$1,750
A-5 UDT$645

Full specifications

Case

5 specs
Category
Tool
Diver
Diameter
39.5mm
38mm
Thickness
12.4mm
Lug-to-Lug
46.8mm
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
Blue
Lume
Super-LumiNova
None

Movement

5 specs
Caliber
ETA 2892A2
Miyota 9015
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
$645

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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.

Praesidus A-5 UDT

The Praesidus A-5 UDT is noted for its historically inspired design, featuring an oversized crown cap and chain that pays homage to WW2 canteen watches. Reviewers highlight its functional dial with embossed, Super-LumiNova filled numerals and markers for legibility, alongside 200m water resistance and a 38mm brushed stainless steel case. Some owners find the 11.7mm thickness problematic, describing it as disproportionately tall. The watch's ana/digi functionality and connection to special operations forces are also praised. On balance, owners and reviewers appreciate the Praesidus A-5 UDT for its unique historical design elements and functional dial.

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