Side by side

Sheffield GMTvsSpinnaker Challenger Automatic

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

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GMT
SheffieldGMT
Challenger Automatic
SpinnakerChallenger Automatic
MSRP $289
Buy from Sheffield ↗
Buy used on eBay ↗
Buy from Spinnaker ↗
Buy used on eBay ↗

At a glance

9 of 29 specs differ
Diameter
GMT40mm
Challenger Automatic42mm
Power Reserve
GMT—
Challenger Automatic40h
Water Resistance
GMT200m
Challenger Automatic200m
MSRP
GMT—
Challenger Automatic$289

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
40mm
42mm
Thickness
13mm
19mm
Lug-to-Lug
48mm
49.5mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel

Movement

2 specs
Caliber
Seiko NH34
SII NH35A
Power Reserve
—
40h

Pricing

1 specs
MSRP
—
$289
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