Side by side
Decima GatekeepervsSeestern S456 GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
17 of 29 specs differDiameter
Gatekeeper38mm
S456 GMT41mm
Power Reserve
Gatekeeper42h
S456 GMT41hh
Water Resistance
Gatekeeper50m
S456 GMT200m
MSRP
Gatekeeper$599
S456 GMT$299
Full specifications
Case
8 specsCategory
—
GMT
Diameter
38mm
41mm
Thickness
9.9mm
13mm
Lug-to-Lug
46mm
49mm
Lug Width
—
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Brushed + Polished
Water Resistance
50m
200m
Crystal & Dial
3 specsAR Coating
Yes
Inner
Dial Color
White
Sunray style, applied and Diamond cut Indices, C1 lume
Lume
None
C1
Movement
5 specsCaliber
Miyota 9039
Seiko NH34
Beat Rate
28,800 vph
3 vph
Power Reserve
42h
41hh
Jewels
25
24
Complications
None
GMT
Pricing
1 specsMSRP
$599
$299
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Decima Gatekeeper vs Seestern S456 GMT gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.