Side by side
Hamilton American Classic Intra-Matic AutovsSmiths Armstrong Siddeley
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
American Classic Intra-Matic Auto40mm
Armstrong Siddeley42mm
Power Reserve
American Classic Intra-Matic Auto80h
Armstrong Siddeley—
Water Resistance
American Classic Intra-Matic Auto50m
Armstrong Siddeley100m
MSRP
American Classic Intra-Matic Auto$1,275
Armstrong Siddeley$980
Full specifications
Case
6 specsCategory
Dress
—
Diameter
40mm
42mm
Thickness
10.95mm
12mm
Lug-to-Lug
46mm
52mm
Lug Width
20mm
22mm
Water Resistance
50m
100m
Crystal & Dial
1 specsDial Color
White
Cream
Movement
3 specsCaliber
H-10
Unitas 6498
Type
Automatic
Manual
Power Reserve
80h
—
Pricing
1 specsMSRP
$1,275
$980
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 Hamilton American Classic Intra-Matic Auto vs Smiths Armstrong Siddeley 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.
Smiths Armstrong SiddeleyvsZelos LT CarbonanOrdain Model 1vsSmiths Armstrong SiddeleySmiths Armstrong SiddeleyvsVario FuturistHalios Universa IIvsSmiths Armstrong SiddeleyHamilton American Classic Intra-Matic AutovsSmiths Armstrong Siddeley Sewills Ferreira PRS-39 coin-edge/fluted-bezel onion-crown 3-hand, Roman numerals + small-secondsHamilton American Classic Intra-Matic AutovsSmiths Armstrong Siddeley Richmond Spencer round smooth-bezel 3-hand, printed Roman numerals + small-seconds