Side by side
Spinnaker Bradner GMTvsGrand Seiko STGK003
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Bradner GMT42mm
STGK00328.7mm
Power Reserve
Bradner GMT40h
STGK00350h
Water Resistance
Bradner GMT180m
STGK003100m
MSRP
Bradner GMT$299
STGK003$31,200
Full specifications
Case
7 specsCategory
GMT
Dress
Diameter
42mm
28.7mm
Thickness
15mm
10.9mm
Lug-to-Lug
50mm
35.1mm
Lug Width
22mm
14mm
Material
316L Stainless Steel
Gold
Water Resistance
180m
100m
Crystal & Dial
2 specsAR Coating
Inner
Yes
Dial Color
Brown
Black
Movement
2 specsCaliber
Seiko NH34A
9S27
Power Reserve
40h
50h
Pricing
1 specsMSRP
$299
$31,200
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