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ProTek Watches Model PT4101SF USMC Carbon DivevsSeiko Prospex Sea

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

Model PT4101SF USMC Carbon Dive
ProTek WatchesModel PT4101SF USMC Carbon Dive
MSRP $575
Prospex Sea
SeikoProspex Sea
MSRP $625

At a glance

14 of 29 specs differ
Diameter
Model PT4101SF USMC Carbon Dive45mm
Prospex Sea43.8mm
Power Reserve
Model PT4101SF USMC Carbon Dive40h
Prospex Sea41h
Water Resistance
Model PT4101SF USMC Carbon Dive300m
Prospex Sea200m
MSRP
Model PT4101SF USMC Carbon Dive$575
Prospex Sea$625

Full specifications

Case

6 specs
Category
Diver
Diameter
45mm
43.8mm
Thickness
12mm
12.8mm
Lug-to-Lug
46mm
48.7mm
Material
Carbon
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Miyota 2035
4R35
Type
Quartz
Automatic
Power Reserve
40h
41h
Jewels
25
23

Pricing

1 specs
MSRP
$575
$625
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