Side by side
Oblvlo FM SL Day-Date SquarevsOak & Oscar The Humboldt GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
18 of 29 specs differDiameter
FM SL Day-Date Square39mm
The Humboldt GMT39.5mm
Power Reserve
FM SL Day-Date Square42h
The Humboldt GMT56 hoursh
Water Resistance
FM SL Day-Date Square50m
The Humboldt GMT200m
MSRP
FM SL Day-Date Square$158
The Humboldt GMT$2,175
Full specifications
Case
9 specsCategory
Dress
GMT
Diameter
39mm
39.5mm
Thickness
11mm
12.5mm
Lug-to-Lug
46mm
46.8mm
Lug Width
21mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Brushed
Water Resistance
50m
200m
Caseback
Solid
Solid screw-down
Crystal & Dial
4 specsCrystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Dial Color
Black
White
Lume
None
Super-LumiNova
Movement
4 specsCaliber
Miyota 8215
Sellita SW330
Beat Rate
28,800 vph
4 vph
Power Reserve
42h
56 hoursh
Jewels
21
25
Pricing
1 specsMSRP
$158
$2,175
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