CWC RN Automatic Divers Watch Mk.2vsSeiko Prospex Marinemaster 1968 Heritage Diver's Watch
lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures
Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

RN Automatic Divers Watch Mk.2

Prospex Marinemaster 1968 Heritage Diver's Watch
Diameter
41mm
42.6mm
Lug-to-Lug
47mm
lowest
49.3mm
Thickness
n/a
14.1mm
Water Resistance
300m
300m
Power Reserve
n/a
72h
MSRP
$1,249
lowest
$3,600
Movement
Sellita SW200-1
Seiko 8L45
Case
3 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The CWC RN Automatic Divers Watch Mk.2 is praised for its build quality, utilitarian capabilities, and classic design, with owners appreciating its historical connection to the UK Navy and its suitability as a tool watch. Some find the fixed spring bars a drawback, limiting strap choices. One owner noted average finishing and a chipped polish. The CWC RN Automatic Divers Watch Mk.2 is a 41mm automatic diver with 300m water resistance. On balance, owners view the CWC RN Automatic Divers Watch Mk.2 positively for its heritage and robust tool-watch nature, despite some reservations about its price and finishing.
Owners and reviewers widely praise the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch for its exceptional finishing, comparable to Grand Seiko, and refined design, with particular appreciation for its case shape and the 4:00 crown position. The watch is noted for its enjoyable look and feel, and some consider it a significant step up from standard Prospex models, offering premium finishing and a tool-like appearance. The movement Seiko 8L45 is mentioned, along with a 72-hour power reserve and an accuracy of -5/+10 seconds per day. However, some find the price point high, and one reviewer noted the unsigned winding crown as a missed opportunity for a watch in this price range. On balance, owners and reviewers rate the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch highly for its exceptional finishing and refined design at its price point.
Similar watches
Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.
Also compared
Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.








