Side by side

Bremont Altitude Perpetual Calendar GMTvsCWC G40 Sonar Quartz Watch

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
G40 Sonar Quartz Watch
CWCG40 Sonar Quartz Watch
MSRP $333

At a glance

11 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
G40 Sonar Quartz Watch40mm
Power Reserve
Altitude Perpetual Calendar GMT40h
G40 Sonar Quartz Watch40h
Water Resistance
Altitude Perpetual Calendar GMT
G40 Sonar Quartz Watch200m
MSRP
Altitude Perpetual Calendar GMT$38,450
G40 Sonar Quartz Watch$333

Full specifications

Case

7 specs
Category
GMT
Field
Diameter
42mm
40mm
Thickness
12.65mm
12mm
Lug-to-Lug
46mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Blue
CWC G40 Sonar Quartz Watch
Lume
None
Super-LumiNova

Pricing

1 specs
MSRP
$38,450
$333

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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 G40 Sonar Quartz Watch

Owners widely appreciate the CWC G40 Sonar Quartz Watch for its classic G10 design, 40mm case size, and 20atm water resistance, noting its light, rugged, and reliable "grab-n-go" nature. Some find the dial proportions have too much negative space, while others praise its unique anodized red crown and quality NATO straps. A larger crown can dig into the wrist, and the lack of a battery hatch is a trade-off for its 100m water resistance. On balance, owners value the CWC G40 Sonar Quartz Watch for its robust build and classic aesthetic, though its price point and competition are frequently cited concerns.

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