Side by side

CWC RN Automatic Divers Watch Mk.2vsLum-Tec Combat B71

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

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

CWC RN Automatic Divers Watch Mk.2

Owners widely praise the CWC RN Diver for its build quality, comfortable wearability, and classic design with desirable brand heritage, suitable for diving. Some owners consider it a favorite, appreciating its case wear and aging tritium as a classic replacement for previous military issue watches. However, a common complaint across multiple sources is the fixed spring bars, which limit strap options, and some find the watch overpriced for its features, particularly when compared to other military-style watches or when noting specific branding text. One owner wishes CWC offered a smaller diver size. On balance, owners rate the CWC RN Diver highly for its utilitarian capabilities and historical connection, despite concerns about strap versatility and value.

Lum-Tec Combat B71

Owners widely praise the Lum-Tec Combat B7 for its exceptionally bright lume and utilitarian design, with one owner specifically noting the appeal of the Cali dial. Confidence exists in the durability of its DLC coating. Reviewers, however, flag the hands as too short and the date window as less than ideally integrated.

At a glance

10 of 29 specs differ
Diameter
RN Automatic Divers Watch Mk.241mm
Combat B7143mm
Power Reserve
RN Automatic Divers Watch Mk.240h
Combat B7140h
Water Resistance
RN Automatic Divers Watch Mk.2300m
Combat B71200m
MSRP
RN Automatic Divers Watch Mk.2$1,249
Combat B71$595

Full specifications

Case

6 specs
Category
Diver
Diameter
41mm
43mm
Thickness
12mm
13.6mm
Lug-to-Lug
47mm
51.5mm
Lug Width
20mm
22mm
Water Resistance
300m
200m

Crystal & Dial

2 specs
Dial Color
CWC RN Automatic Divers Watch Mk.2, Stainless Steel (RN300-MT AS120)
Lume
Super-LumiNova
None

Movement

1 specs
Caliber
Sellita SW200-1
Ronda 515

Pricing

1 specs
MSRP
$1,249
$595
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