Side by side
Alexander James Watches A4 Prelude 37 GMTvsFeynman Timekeepers Feynman One
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
A4 Prelude 37 GMT37.4mm
Feynman One39mm
Power Reserve
A4 Prelude 37 GMT—
Feynman One—
Water Resistance
A4 Prelude 37 GMT200m
Feynman One50m
MSRP
A4 Prelude 37 GMT—
Feynman One$1,045
Full specifications
Case
4 specsDiameter
37.4mm
39mm
Thickness
12.1mm
11.5mm
Lug-to-Lug
44.7mm
—
Water Resistance
200m
50m
Crystal & Dial
3 specsCrystal
Sapphire
—
Dial Color
White
Sweet Orange
Lume
BGW9
None
Movement
2 specsCaliber
Seiko NH34
ETA 7001
Type
Automatic
Manual
Pricing
1 specsMSRP
—
$1,045
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