Side by side

Oak & Oscar The Humboldt GMTvsIslander Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316

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
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316
IslanderIslander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316
MSRP $379

At a glance

15 of 29 specs differ
Diameter
The Humboldt GMT39.5mm
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-31640mm
Power Reserve
The Humboldt GMT56 hoursh
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316
Water Resistance
The Humboldt GMT200m
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316200m
MSRP
The Humboldt GMT$2,175
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316$379

Full specifications

Case

6 specs
Diameter
39.5mm
40mm
Thickness
12.5mm
14mm
Lug-to-Lug
46.8mm
48mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed
Caseback
Solid screw-down
Screw-down

Crystal & Dial

4 specs
Crystal Shape
Double-domed
Flat
Dial Color
White
Indices
Applied
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
Sellita SW330
Seiko NH34
Beat Rate
4 vph
0 vph
Power Reserve
56 hoursh
0h
Jewels
25
0

Pricing

1 specs
MSRP
$2,175
$379

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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.

Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316

Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 offers excellent value at $329 MSRP, featuring a handsome anthracite dial with applied indices, a sapphire crystal, and a quality 120-click unidirectional bezel. Owners highlight the NH34 movement and well-proportioned 40x48x20mm case. Overall, owners rate the Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 highly for its value and feature set at the price point.

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