Side by side
Feynman Timekeepers Feynman OnevsTissot Gentleman Open Heart
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
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At a glance
15 of 29 specs differDiameter
Feynman One39mm
Gentleman Open Heart40mm
Power Reserve
Feynman One—
Gentleman Open Heart80h
Water Resistance
Feynman One50m
Gentleman Open Heart100m
MSRP
Feynman One$1,045
Gentleman Open Heart$1,025
Full specifications
Case
5 specsCategory
—
Chronograph
Diameter
39mm
40mm
Lug-to-Lug
—
40mm
Lug Width
20mm
21mm
Water Resistance
50m
100m
Crystal & Dial
6 specsCrystal
—
Sapphire
Crystal Shape
—
Domed
AR Coating
—
Yes
Dial Color
Sweet Orange
Silver
Indices
—
Indexes
Lume
None
Super-LumiNova ®
Movement
3 specsCaliber
ETA/Peseux 7001
11.5'
Type
Manual
Automatic
Power Reserve
—
80h
Pricing
1 specsMSRP
$1,045
$1,025
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