Side by side
Feynman Timekeepers Feynman OnevsHemel HFC Mechanical Chronograph
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Feynman One39mm
HFC Mechanical Chronograph40mm
Power Reserve
Feynman One—
HFC Mechanical Chronograph40h
Water Resistance
Feynman One50m
HFC Mechanical Chronograph100m
MSRP
Feynman One$1,045
HFC Mechanical Chronograph$550
Full specifications
Case
6 specsCategory
—
Chronograph
Diameter
39mm
40mm
Thickness
11.5mm
13.4mm
Lug-to-Lug
—
47mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
100m
Crystal & Dial
2 specsCrystal
—
Domed Sapphire
Dial Color
Sweet Orange
Airfoil (1970s British Pilot)
Movement
2 specsCaliber
ETA 7001
Seagull ST19
Power Reserve
—
40h
Pricing
1 specsMSRP
$1,045
$550
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