Side by side
Feynman Timekeepers Feynman OnevsLongines ULTRA-CHRON CLASSIC
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
22 of 29 specs differDiameter
Feynman One39mm
ULTRA-CHRON CLASSIC40mm
Power Reserve
Feynman One—
ULTRA-CHRON CLASSIC72h
Water Resistance
Feynman One50m
ULTRA-CHRON CLASSIC30m
MSRP
Feynman One$1,045
ULTRA-CHRON CLASSIC$4,000
Full specifications
Case
7 specsDiameter
39mm
40mm
Thickness
11.5mm
10.95mm
Lug-to-Lug
—
47.2mm
Lug Width
20mm
21mm
Finish
Brushed and polished
—
Water Resistance
50m
30m
Caseback
Solid
Transparent case back with sapphire crystal
Crystal & Dial
6 specsCrystal
—
Sapphire
Crystal Shape
Flat
—
AR Coating
Inner
Both sides
Dial Color
Sweet Orange
Silver
Indices
Applied
Applied indexes
Lume
None
Super-LumiNova
Movement
8 specsCaliber
ETA 7001
L836.6
Type
Manual
Automatic
Beat Rate
28,800 vph
25,200 vph
Power Reserve
—
72h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds, moon phase display and date indicated by small hand at
Pricing
1 specsMSRP
$1,045
$4,000
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