Side by side
Seestern S446 GMTvsSmiths Armstrong Siddeley
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
S446 GMT39.5mm
Armstrong Siddeley42mm
Power Reserve
S446 GMT41hh
Armstrong Siddeley—
Water Resistance
S446 GMT100m
Armstrong Siddeley100m
MSRP
S446 GMT$299
Armstrong Siddeley$980
Full specifications
Case
6 specsCategory
GMT
—
Diameter
39.5mm
42mm
Thickness
13mm
12mm
Lug-to-Lug
47mm
52mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Crystal & Dial
1 specsCrystal Shape
Domed
Flat
Movement
6 specsCaliber
Seiko NH34A GMT
Unitas 6498
Type
Automatic
Manual
Beat Rate
3 vph
28,800 vph
Power Reserve
41hh
—
Jewels
24
25
Complications
GMT, Date
None
Pricing
1 specsMSRP
$299
$980
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