Side by side
Decima GatekeepervsSeestern S446 GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
Gatekeeper38mm
S446 GMT39.5mm
Power Reserve
Gatekeeper42h
S446 GMT41hh
Water Resistance
Gatekeeper50m
S446 GMT100m
MSRP
Gatekeeper$599
S446 GMT$299
Full specifications
Case
7 specsCategory
—
GMT
Diameter
38mm
39.5mm
Thickness
9.9mm
13mm
Lug-to-Lug
46mm
47mm
Lug Width
—
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
100m
Crystal & Dial
3 specsCrystal Shape
Flat
Domed
AR Coating
Yes
Inner
Dial Color
White
Cream
Movement
5 specsCaliber
Miyota 9039
Seiko NH34A GMT
Beat Rate
28,800 vph
3 vph
Power Reserve
42h
41hh
Jewels
25
24
Complications
None
GMT, Date
Pricing
1 specsMSRP
$599
$299
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