Side by side
MKII Key WestvsSeestern S456 GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
Key West40mm
S456 GMT41mm
Power Reserve
Key West—
S456 GMT41hh
Water Resistance
Key West200m
S456 GMT200m
MSRP
Key West$1,694
S456 GMT$299
Full specifications
Case
7 specsCategory
—
GMT
Diameter
40mm
41mm
Thickness
—
13mm
Lug-to-Lug
—
49mm
Lug Width
—
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Brushed + Polished
Crystal & Dial
2 specsDial Color
Black
Sunray style, applied and Diamond cut Indices, C1 lume
Lume
None
C1
Movement
5 specsCaliber
ETA 2893-2
Seiko NH34
Beat Rate
28,800 vph
3 vph
Power Reserve
—
41hh
Jewels
25
24
Complications
None
GMT
Pricing
1 specsMSRP
—
$299
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