Side by side
Oak & Oscar The Humboldt GMTvsSugess Ocean Star S421
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
The Humboldt GMT39.5mm
Ocean Star S42140mm
Power Reserve
The Humboldt GMT56 hoursh
Ocean Star S42140h
Water Resistance
The Humboldt GMT200m
Ocean Star S421300m
MSRP
The Humboldt GMT$2,175
Ocean Star S421$449
Full specifications
Case
8 specsCategory
GMT
Diver
Diameter
39.5mm
40mm
Thickness
12.5mm
12.7mm
Lug-to-Lug
46.8mm
46mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid screw-down
Solid
Crystal & Dial
4 specsCrystal Shape
Double-domed
Flat
AR Coating
Underside
Inner
Dial Color
White
SU116610LB Black
Lume
Super-LumiNova
None
Movement
3 specsCaliber
Sellita SW330
Seagull ST2130/Seiko NH35
Power Reserve
56 hoursh
40h
Complications
None
GMT, Chronograph, Moonphase, Date
Pricing
1 specsMSRP
$2,175
$449
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