Side by side

Oak & Oscar The Humboldt GMTvsGrand Seiko SBGA375

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
SBGA375
Grand SeikoSBGA375
MSRP $5,600
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.

Grand Seiko SBGA375

Grand Seiko SBGA375 owners praise its classic, subtle design and the engineering of its Spring Drive movement, with one noting it "does not fail to deliver what they are known for." The dial offers good legibility, with polished side bevels on the hour markers catching light well. However, one owner scuffed the bezel within a week, and another questioned if a lug was missing. Overall, owners rate the Grand Seiko SBGA375 highly for its refined design and movement engineering, signaling discerning taste.

From video reviewers

The Spring Drive movement's smooth sweep is a key strength. The bracelet's taper and clasp were cited as areas for improvement.

At a glance

17 of 29 specs differ
Diameter
The Humboldt GMT39.5mm
SBGA37540mm
Power Reserve
The Humboldt GMT56 hoursh
SBGA37572h
Water Resistance
The Humboldt GMT200m
SBGA375100m
MSRP
The Humboldt GMT$2,175
SBGA375$5,600

Full specifications

Case

8 specs
Category
GMT
Dress
Diameter
39.5mm
40mm
Lug-to-Lug
46.8mm
46.2mm
Lug Width
20mm
19mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed
Brushed and polished
Water Resistance
200m
100m
Caseback
Solid screw-down
Solid

Crystal & Dial

4 specs
Crystal Shape
Double-domed
Flat
AR Coating
Underside
Yes
Dial Color
White
Black
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
Sellita SW330-2
9R65
Type
Automatic
Spring Drive
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
72h

Pricing

1 specs
MSRP
$2,175
$5,600
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