Side by side
Feynman Timekeepers Feynman OnevsPraesidus Neptune 44
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Feynman One39mm
Neptune 4444mm
Power Reserve
Feynman One—
Neptune 4440h
Water Resistance
Feynman One50m
Neptune 44200m
MSRP
Feynman One$1,045
Neptune 44$550
Full specifications
Case
6 specsCategory
—
Diver
Diameter
39mm
44mm
Thickness
11.5mm
—
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
200m
Crystal & Dial
2 specsCrystal
—
Domed Sapphire
Dial Color
Sweet Orange
Patina
Movement
3 specsCaliber
ETA 7001
Miyota 9039
Type
Manual
Automatic
Power Reserve
—
40h
Pricing
1 specsMSRP
$1,045
$550
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