Side by side
Hemel HFC Mechanical ChronographvsSmiths 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
HFC Mechanical Chronograph40mm
Armstrong Siddeley42mm
Power Reserve
HFC Mechanical Chronograph40h
Armstrong Siddeley—
Water Resistance
HFC Mechanical Chronograph100m
Armstrong Siddeley100m
MSRP
HFC Mechanical Chronograph$550
Armstrong Siddeley$980
Full specifications
Case
6 specsCategory
Chronograph
—
Diameter
40mm
42mm
Thickness
13.4mm
12mm
Lug-to-Lug
47mm
52mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Crystal & Dial
2 specsCrystal
Domed Sapphire
Sapphire
Dial Color
Airfoil (1970s British Pilot)
Cream
Movement
2 specsCaliber
Seagull ST19
Unitas 6498
Power Reserve
40h
—
Pricing
1 specsMSRP
$550
$980
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