Side by side

Oak & Oscar The Humboldt Seven YearvsJack Mason Strat-o-timer GMT

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 Seven Year

Oak & Oscar The Humboldt Seven Year owners note the hand-machined brass bezel and hand-finished dial. One owner reports the Sellita SW300 movement timed at -5 seconds per day, and another owner observed minor imperfections on the dial and crystal, along with a small ding on a lug. On balance, owners appreciate the unique dial and bezel finishing, though some minor cosmetic flaws have been noted.

Jack Mason Strat-o-timer GMT

Owners widely praise the Jack Mason Strat-o-timer GMT for its impressive fit and finish, excellent value, and true traveler GMT complication, especially considering its price point. Reviewers and owners alike highlight the comfortable 40mm tonneau case, sapphire crystal bezel, and retro styling. Some owners note the hour markers are "chubby" but do not affect legibility, and the strap ends are slightly large. One owner describes the 7-link bracelet as rivaling luxury brands. On balance, owners and reviewers rate the Jack Mason Strat-o-timer GMT highly for its build quality and value proposition.

From video reviewers

The Miyota 9075 true GMT movement is a consistent strength. Reviewers noted the exceptional lightness and comfort due to Grade 2 titanium construction. Opinions on whether further refinements are needed were not shared.

At a glance

14 of 29 specs differ
Diameter
The Humboldt Seven Year39.5mm
Strat-o-timer GMT40mm
Power Reserve
The Humboldt Seven Year42h
Strat-o-timer GMT42h
Water Resistance
The Humboldt Seven Year200m
Strat-o-timer GMT200m
MSRP
The Humboldt Seven Year$2,400
Strat-o-timer GMT$1,099

Full specifications

Case

5 specs
Category
Tool
Diameter
39.5mm
40mm
Thickness
12.4mm
13.2mm
Lug-to-Lug
46.8mm
47mm
Material
316L Stainless Steel + Brass
Stainless Steel

Crystal & Dial

4 specs
Crystal Shape
Double-domed
AR Coating
Underside
Dial Color
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
Sellita SW300-1
Miyota 9075
Beat Rate
4 vph
0 vph
Jewels
25
0
Complications
GMT, Chronograph, Date
None

Pricing

1 specs
MSRP
$2,400
$1,099
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