Side by side

Feynman Timekeepers Feynman OnevsTuseno Shellback

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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Feynman One
Feynman TimekeepersFeynman One
MSRP $1,045
See the full Feynman One
Shellback
TusenoShellback
MSRP $840
See the full Shellback
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At a glance

10 of 29 specs differ
Diameter
Feynman One39mm
Shellback40mm
Power Reserve
Feynman One—
Shellback—
Water Resistance
Feynman One50m
Shellback200m
MSRP
Feynman One$1,045
Shellback$840

Full specifications

Case

4 specs
Diameter
39mm
40mm
Thickness
11.5mm
11.9mm
Lug-to-Lug
—
47mm
Water Resistance
50m
200m

Crystal & Dial

3 specs
Crystal
—
Sapphire
Dial Color
Sweet Orange
Yellow
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
ETA 7001
Sellita SW200-1
Type
Manual
Automatic

Pricing

1 specs
MSRP
$1,045
$840
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