Side by side

Oak & Oscar The Humboldt GMTvsRZE Fortitude GMT

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
Fortitude GMT
RZEFortitude GMT
MSRP $719

At a glance

14 of 29 specs differ
Diameter
The Humboldt GMT39.5mm
Fortitude GMT41mm
Power Reserve
The Humboldt GMT56 hoursh
Fortitude GMT40h
Water Resistance
The Humboldt GMT200m
Fortitude GMT200m
MSRP
The Humboldt GMT$2,175
Fortitude GMT$719

Full specifications

Case

6 specs
Diameter
39.5mm
41mm
Thickness
12.5mm
12mm
Lug-to-Lug
46.8mm
47mm
Material
316L Stainless Steel
Grade 5 Titanium
Finish
Brushed
Brushed and polished
Caseback
Solid screw-down
Solid

Crystal & Dial

3 specs
Crystal Shape
Double-domed
Flat
Dial Color
White
Red
Lume
Super-LumiNova
Super-LumiNova BGW9

Movement

4 specs
Caliber
Sellita SW330
Miyota 9075
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
40h
Complications
None
GMT

Pricing

1 specs
MSRP
$2,175
$719

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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.

RZE Fortitude GMT

The RZE Fortitude GMT is widely praised for its lightweight titanium construction and durable UltraHex coating, offering exceptional value under $700. Owners and reviewers highlight its comfortable wearability, with a bracelet featuring a quick-adjust clasp and multiple micro-adjustment positions. The Miyota 9075 flyer GMT movement is noted for its accuracy, with one owner reporting -1 to +1 seconds per day, though another source states a range of -10/+30 seconds per day. The watch's design is appreciated for its soul and attention to detail, including a subtle red crown tube indicator and faceted lugs, and its Nimbus Grey dial features a coarse, sandpaper-like texture and fumé effect. A reviewer points out the rotor can be loud and a smaller screwdriver is needed for sizing, while an owner found the GMT hand lume confusing. Overall, owners and reviewers rate the RZE Fortitude GMT highly for its comfortable titanium build, durable coating, and excellent value.

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