Side by side
Biatec T. G. MasarykvsSeiko Prospex Sea Save the Ocean Special 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 Sea Save the Ocean Special Edition43.8mm
Power Reserve
T. G. Masaryk41h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
T. G. Masaryk100m
Prospex Sea Save the Ocean Special Edition200m
MSRP
T. G. Masaryk$2,214
Prospex Sea Save the Ocean Special Edition$650
Full specifications
Case
7 specsCategory
—
Diver
Diameter
40mm
43.8mm
Thickness
11.15mm
12.8mm
Lug-to-Lug
48mm
48.7mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
200m
Crystal & Dial
3 specsAR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Beige
Black
Lume
None
LumiBrite on hands, index(es) and bezel
Movement
2 specsCaliber
Sellita SW200-1
4R35
Jewels
25
23
Pricing
1 specsMSRP
—
$650
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