Side by side
JIANGHUN Deep Challenger GMT Diver 300vsSpinnaker Dumas Automatic
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
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At a glance
8 of 29 specs differDiameter
Deep Challenger GMT Diver 30042mm
Dumas Automatic44mm
Power Reserve
Deep Challenger GMT Diver 300—
Dumas Automatic—
Water Resistance
Deep Challenger GMT Diver 300300m
Dumas Automatic300m
MSRP
Deep Challenger GMT Diver 300$368
Dumas Automatic$239
Full specifications
Case
5 specsCategory
—
Diver
Diameter
42mm
44mm
Thickness
14mm
15mm
Lug-to-Lug
49mm
48mm
Material
Stainless Steel
316L Stainless Steel
Crystal & Dial
1 specsDial Color
—
Blue
Movement
1 specsCaliber
Seiko NH34
Seiko NH35
Pricing
1 specsMSRP
$368
$239
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