Side by side

Bremont Altitude Perpetual Calendar GMTvsCWC RN Quartz Divers Watch Mk.2, Matte Top

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

Altitude Perpetual Calendar GMT
BremontAltitude Perpetual Calendar GMT
MSRP $38,450
RN Quartz Divers Watch Mk.2, Matte Top
CWCRN Quartz Divers Watch Mk.2, Matte Top
MSRP $604

At a glance

13 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
RN Quartz Divers Watch Mk.2, Matte Top41mm
Power Reserve
Altitude Perpetual Calendar GMT40h
RN Quartz Divers Watch Mk.2, Matte Top40h
Water Resistance
Altitude Perpetual Calendar GMT
RN Quartz Divers Watch Mk.2, Matte Top300m
MSRP
Altitude Perpetual Calendar GMT$38,450
RN Quartz Divers Watch Mk.2, Matte Top$604

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
42mm
41mm
Thickness
12.65mm
12mm
Lug-to-Lug
47mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
300m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Blue
CWC RN Quartz Divers Watch Mk.2, Matte Top (RN300-MT QS120)
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
Ronda 517
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$38,450
$604

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What people say

Owners + reviewers, side by side

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

Bremont Altitude Perpetual Calendar GMT

The Bremont Altitude Perpetual Calendar GMT is a highly exclusive piece, with one owner noting its $44,000 price point raises questions about its target audience and suggesting it may be a limited production showpiece. Reviewers highlight its refined Trip-Tick case, now featuring softer curves, a 42mm diameter, and a 12.23mm thickness in grade 2 titanium, though the oversized crowns are flagged as a potential drawback. Overall, owners and reviewers acknowledge the Bremont Altitude Perpetual Calendar GMT as a distinctive, albeit niche, high-complication offering with a notable case refinement.

CWC RN Quartz Divers Watch Mk.2, Matte Top

Owners widely praise the CWC RN Quartz Divers Watch Mk.2, Matte Top for its excellent matte case finishing, precise seconds hand alignment, and dial reminiscent of vintage military watches. The Mk.2 upgrades, including a sapphire crystal, improved lume, and a precise 120-click bezel described as perfection with no play, are consistently highlighted as significant improvements over earlier versions. One owner noted the quartz movement gained 8 seconds over several months. Overall, owners rate the CWC RN Quartz Divers Watch Mk.2, Matte Top highly for its solid construction, military significance, and terrific value.

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