Side by side

Oak & Oscar The Humboldt GMTvsSeestern S456 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
S456 GMT
SeesternS456 GMT
MSRP $299
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.

Seestern S456 GMT

Owners widely praise the Seestern S456 GMT for its exceptional value and finishing that exceeds expectations, with one owner noting its accuracy surpasses that of their Seiko 5. The dial displays a pearl-like rainbow effect. Some owners would prefer a bidirectional bezel over the current unidirectional one. The Seestern S456 GMT features an NH34 movement, a 39.5mm case, sapphire crystal, and an adjustable clasp. On balance, owners rate the Seestern S456 GMT highly for its impressive finishing and value proposition at its price point.

From video reviewers

The watch features stunning, detailed finishing that is difficult to top. Reviewers did not reach a consensus on any weaknesses.

At a glance

15 of 29 specs differ
Diameter
The Humboldt GMT39.5mm
S456 GMT41mm
Power Reserve
The Humboldt GMT56 hoursh
S456 GMT41hh
Water Resistance
The Humboldt GMT200m
S456 GMT200m
MSRP
The Humboldt GMT$2,175
S456 GMT$299

Full specifications

Case

5 specs
Diameter
39.5mm
41mm
Thickness
12.5mm
13mm
Lug-to-Lug
46.8mm
49mm
Finish
Brushed
Brushed + Polished
Caseback
Solid screw-down
Solid

Crystal & Dial

4 specs
Crystal Shape
Double-domed
Flat
AR Coating
Underside
Inner
Dial Color
White
Sunray style, applied and Diamond cut Indices, C1 lume
Lume
Super-LumiNova
C1

Movement

5 specs
Caliber
Sellita SW330-2
Seiko NH34
Beat Rate
4 vph
3 vph
Power Reserve
56 hoursh
41hh
Jewels
25
24
Complications
None
GMT

Pricing

1 specs
MSRP
$2,175
$299
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