Side by side
Seestern S456 GMTvsSmiths Armstrong Siddeley
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
17 of 29 specs differDiameter
S456 GMT41mm
Armstrong Siddeley42mm
Power Reserve
S456 GMT41hh
Armstrong Siddeley—
Water Resistance
S456 GMT200m
Armstrong Siddeley100m
MSRP
S456 GMT$299
Armstrong Siddeley$980
Full specifications
Case
8 specsCategory
GMT
—
Diameter
41mm
42mm
Thickness
13mm
12mm
Lug-to-Lug
49mm
52mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Polished
Brushed and polished
Water Resistance
200m
100m
Crystal & Dial
2 specsDial Color
Sunray style, applied and Diamond cut Indices, C1 lume
Cream
Lume
C1
None
Movement
6 specsCaliber
Seiko NH34
Unitas 6498
Type
Automatic
Manual
Beat Rate
3 vph
28,800 vph
Power Reserve
41hh
—
Jewels
24
25
Complications
GMT
None
Pricing
1 specsMSRP
$299
$980
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