Side by side
Alexander James Watches A4 Prelude 37 GMTvsCamp Watches Fieldtimer
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
Fieldtimer39mm
Power Reserve
A4 Prelude 37 GMT—
Fieldtimer42h
Water Resistance
A4 Prelude 37 GMT200m
Fieldtimer100m
MSRP
A4 Prelude 37 GMT—
Fieldtimer—
Full specifications
Case
5 specsDiameter
37.4mm
39mm
Thickness
12.1mm
10mm
Lug-to-Lug
44.7mm
47.2mm
Lug Width
20mm
20mm
Water Resistance
200m
100m
Crystal & Dial
2 specsDial Color
White
Blue
Lume
BGW9
SuperLuminova
Movement
3 specsCaliber
Seiko NH34
Sellita SW210-1b
Type
Automatic
Manual
Power Reserve
—
42h
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