Side by side
Biatec T. G. MasarykvsSeestern S446 GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
T. G. Masaryk40mm
S446 GMT39.5mm
Power Reserve
T. G. Masaryk41h
S446 GMT41hh
Water Resistance
T. G. Masaryk100m
S446 GMT100m
MSRP
T. G. Masaryk$2,214
S446 GMT$299
Full specifications
Case
4 specsCategory
—
GMT
Diameter
40mm
39.5mm
Thickness
11.15mm
13mm
Lug-to-Lug
48mm
47mm
Crystal & Dial
2 specsCrystal Shape
Flat
Domed
Dial Color
Beige
Cream
Movement
5 specsCaliber
Sellita SW200-1
Seiko NH34A GMT
Beat Rate
28,800 vph
3 vph
Power Reserve
41h
41hh
Jewels
25
24
Complications
None
GMT, Date
Pricing
1 specsMSRP
—
$299
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