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Biatec T. G. MasarykvsSeiko Prospex Sea

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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T. G. Masaryk
BiatecT. G. Masaryk
MSRP $2,214
Prospex Sea
SeikoProspex Sea
MSRP $595
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Buy from Seiko ↗
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At a glance

12 of 29 specs differ
Diameter
T. G. Masaryk40mm
Prospex Sea41.7mm
Power Reserve
T. G. Masaryk41h
Prospex Sea41h
Water Resistance
T. G. Masaryk100m
Prospex Sea200m
MSRP
T. G. Masaryk$2,214
Prospex Sea$595

Full specifications

Case

6 specs
Category
—
Diver
Diameter
40mm
41.7mm
Thickness
11.15mm
12.3mm
Lug-to-Lug
48mm
49.5mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Beige
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

2 specs
Caliber
Sellita SW200-1
4R35
Jewels
25
23

Pricing

1 specs
MSRP
—
$595
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