Side by side

Oak & Oscar The Humboldt GMTvsTissot Gentleman Open Heart

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

The Humboldt GMT
Oak & OscarThe Humboldt GMT
MSRP $2,175
Gentleman Open Heart
TissotGentleman Open Heart
MSRP $1,025

At a glance

18 of 29 specs differ
Diameter
The Humboldt GMT39.5mm
Gentleman Open Heart40mm
Power Reserve
The Humboldt GMT56 hoursh
Gentleman Open Heart80h
Water Resistance
The Humboldt GMT200m
Gentleman Open Heart100m
MSRP
The Humboldt GMT$2,175
Gentleman Open Heart$1,025

Full specifications

Case

9 specs
Category
GMT
Chronograph
Diameter
39.5mm
40mm
Thickness
12.5mm
11.5mm
Lug-to-Lug
46.8mm
40mm
Lug Width
20mm
21mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed
Brushed and polished
Water Resistance
200m
100m
Caseback
Solid screw-down
Solid

Crystal & Dial

5 specs
Crystal Shape
Double-domed
Domed
AR Coating
Underside
Yes
Dial Color
White
Silver
Indices
Applied
Indexes
Lume
Super-LumiNova
Super-LumiNova ®

Movement

3 specs
Caliber
Sellita SW330
11 1/2'''
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
80h

Pricing

1 specs
MSRP
$2,175
$1,025

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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 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.

Tissot Gentleman Open Heart

Owners widely praise the Tissot Gentleman Open Heart for its versatile dressy-sporty aesthetic and elegant sunburst dial finish, with one owner preferring its less shiny blue dial compared to other versions. The watch offers excellent fit and bracelet adjustability, and its modified Powermatic 80 movement achieves COSC-level accuracy of -3 to +5 seconds/day, though the seconds hand movement is slightly less smooth at 6 movements per second. However, one owner reported the watch arrived non-functional, requiring a return due to an inoperable movement. On balance, owners rate the Tissot Gentleman Open Heart highly for its aesthetic appeal and accurate timekeeping, despite a reported instance of a faulty movement.

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