Side by side
Alexander James Watches A4 Prelude 37 GMTvsBiatec T. G. Masaryk
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
T. G. Masaryk40mm
Power Reserve
A4 Prelude 37 GMT—
T. G. Masaryk41h
Water Resistance
A4 Prelude 37 GMT200m
T. G. Masaryk100m
MSRP
A4 Prelude 37 GMT—
T. G. Masaryk$2,214
Full specifications
Case
5 specsDiameter
37.4mm
40mm
Thickness
12.1mm
11.15mm
Lug-to-Lug
44.7mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
100m
Crystal & Dial
2 specsDial Color
White
Beige
Lume
BGW9
None
Movement
2 specsCaliber
Seiko NH34
Sellita SW200-1
Power Reserve
—
41h
Pricing
1 specsMSRP
—
—
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