Side by side

Spinnaker Dumas GMTvsTSAO Baltimore UMD Cole Field House

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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Dumas GMT
SpinnakerDumas GMT
MSRP $399
UMD Cole Field House
TSAO BaltimoreUMD Cole Field House
MSRP $550
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Buy used on eBay ↗
Buy from TSAO Baltimore ↗
Buy used on eBay ↗

At a glance

10 of 29 specs differ
Diameter
Dumas GMT44mm
UMD Cole Field House40mm
Power Reserve
Dumas GMT40h
UMD Cole Field House40h
Water Resistance
Dumas GMT300m
UMD Cole Field House100m
MSRP
Dumas GMT$399
UMD Cole Field House$550

Full specifications

Case

7 specs
Category
GMT
—
Diameter
44mm
40mm
Thickness
15mm
13.2mm
Lug-to-Lug
48mm
47mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Blue
—

Movement

1 specs
Caliber
Seiko NH34A
Seiko NH35

Pricing

1 specs
MSRP
$399
$550
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