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CWC (Cabot Watch Company) RN300 Automatic Diver Mk.1 Tritium Watch With DatevsSeiko Prospex LX line

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

RN300 Automatic Diver Mk.1 Tritium Watch With Date
CWC (Cabot Watch Company)RN300 Automatic Diver Mk.1 Tritium Watch With Date
MSRP $3,174
Prospex LX line
SeikoProspex LX line
MSRP $6,500

At a glance

15 of 29 specs differ
Diameter
RN300 Automatic Diver Mk.1 Tritium Watch With Date40mm
Prospex LX line44.8mm
Power Reserve
RN300 Automatic Diver Mk.1 Tritium Watch With Date40h
Prospex LX line72h
Water Resistance
RN300 Automatic Diver Mk.1 Tritium Watch With Date300m
Prospex LX line300m
MSRP
RN300 Automatic Diver Mk.1 Tritium Watch With Date$3,174
Prospex LX line$6,500

Full specifications

Case

6 specs
Category
Diver
Diameter
40mm
44.8mm
Thickness
14.5mm
15.7mm
Lug-to-Lug
46mm
50.9mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium

Crystal & Dial

4 specs
Crystal
Mineral
Sapphire
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Black
Lume
None
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
ETA 2824
5R65
Type
Automatic
Spring Drive
Power Reserve
40h
72h
Jewels
25
30

Pricing

1 specs
MSRP
$6,500
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