Side by side
Biatec T. G. MasarykvsSeiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
T. G. Masaryk40mm
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition42.5mm
Power Reserve
T. G. Masaryk41h
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition45h
Water Resistance
T. G. Masaryk100m
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition100m
MSRP
T. G. Masaryk$2,214
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition$3,000
Full specifications
Case
5 specsCategory
—
Chronograph
Diameter
40mm
42.5mm
Thickness
11.15mm
15.1mm
Lug-to-Lug
48mm
50mm
Material
316L Stainless Steel
Stainless Steel
Crystal & Dial
4 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Beige
Black
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Sellita SW200-1
8R46
Power Reserve
41h
45h
Jewels
25
34
Pricing
1 specsMSRP
—
$3,000
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