Side by side
Oak & Oscar The Olmsted Windup EditionvsZelos Spearfish GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
The Olmsted Windup Edition38mm
Spearfish GMT40mm
Power Reserve
The Olmsted Windup Edition50h
Spearfish GMT40h
Water Resistance
The Olmsted Windup Edition100m
Spearfish GMT200m
MSRP
The Olmsted Windup Edition$1,775
Spearfish GMT$999
Full specifications
Case
6 specsCategory
Field
GMT
Diameter
38mm
40mm
Thickness
10.8mm
13mm
Lug-to-Lug
44.9mm
40mm
Water Resistance
100m
200m
Caseback
Engraved
Solid
Crystal & Dial
4 specsCrystal Shape
Double-domed
Flat
AR Coating
Underside
Inner
Dial Color
Grey
Frost
Lume
Super-LumiNova
None
Movement
4 specsCaliber
Sellita SW300
Sellita SW330-2
Beat Rate
4 vph
28,800 vph
Power Reserve
50h
40h
Complications
GMT, Chronograph, Date
None
Pricing
1 specsMSRP
$1,775
$999
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