Side by side

Biatec T. G. MasarykvsSeiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

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

At a glance

14 of 29 specs differ
Diameter
T. G. Masaryk40mm
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition44mm
Power Reserve
T. G. Masaryk41h
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition50h
Water Resistance
T. G. Masaryk100m
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition200m
MSRP
T. G. Masaryk$2,214
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition$3,300

Full specifications

Case

6 specs
Category
Diver
Diameter
40mm
44mm
Thickness
11.15mm
13mm
Lug-to-Lug
48mm
49.3mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Beige
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW200-1
8L35
Power Reserve
41h
50h
Jewels
25
26

Pricing

1 specs
MSRP
$3,300
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