Side by side

Hamilton Jazzmaster Slim AutovsOak & Oscar The Humboldt GMT

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

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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.

Hamilton Jazzmaster Slim Auto

The Hamilton Jazzmaster Slim Auto is praised for its elegance, light weight, and impressive leather strap, offering a classy yet engaging aesthetic. Its thin 8mm profile, achieved partly by omitting a seconds hand and utilizing the ETA 2892 movement, contributes to its wearability. However, one owner notes the 44mm case size as being very large, and another finds it less appealing than vintage Hamilton models, though the black dial version is considered better looking. Overall, owners appreciate the Hamilton Jazzmaster Slim Auto for its slim profile and elegant design.

Oak & Oscar The Humboldt GMT

Oak & Oscar The Humboldt GMT owners widely praise its exceptional accuracy, often running at or near 0 seconds per day, and its comfortable wearability with subtle design details. The construction quality for the price point, sandwich lume, and anti-magnetic properties are also highlighted. Some owners find the bracelet sizing adjustment slightly awkward, and one noted the lume could be brighter. Overall, owners rate the Oak & Oscar The Humboldt GMT highly for its accuracy and comfortable wearability.

From video reviewers

The Humboldt GMT's sandwich dial and true GMT complication deliver practical traveler functionality in a 40mm brushed stainless steel case with 20ATM water resistance. Swiss-made movement construction with anti-shock and anti-magnetic properties meets tight manufacturing tolerances and rigorous testing standards. Positioning against sub-$2,000 GMT competitors raises questions about value proposition relative to alternatives in this price tier.

At a glance

19 of 29 specs differ
Diameter
Jazzmaster Slim Auto40mm
The Humboldt GMT39.5mm
Power Reserve
Jazzmaster Slim Auto50h
The Humboldt GMT56 hoursh
Water Resistance
Jazzmaster Slim Auto30m
The Humboldt GMT200m
MSRP
Jazzmaster Slim Auto$825
The Humboldt GMT$2,175

Full specifications

Case

9 specs
Category
Dress
GMT
Diameter
40mm
39.5mm
Thickness
8.35mm
12.5mm
Lug-to-Lug
0mm
46.8mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed
Water Resistance
30m
200m
Caseback
Solid screw-down

Crystal & Dial

5 specs
Crystal Shape
Double-domed
AR Coating
Underside
Dial Color
Black
White
Indices
Applied
Lume
None
Super-LumiNova

Movement

4 specs
Caliber
Sellita SW330-2
Beat Rate
0 vph
4 vph
Power Reserve
50h
56 hoursh
Jewels
0
25

Pricing

1 specs
MSRP
$825
$2,175
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