Side by side

Bremont Altitude Perpetual Calendar GMTvsSpinnaker Cahill Automatic

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
Cahill Automatic
SpinnakerCahill Automatic
MSRP $350

At a glance

8 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Cahill Automatic42mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Cahill Automatic40h
Water Resistance
Altitude Perpetual Calendar GMT
Cahill Automatic200m
MSRP
Altitude Perpetual Calendar GMT$38,450
Cahill Automatic$350

Full specifications

Case

5 specs
Category
GMT
Diver
Thickness
12.65mm
13.7mm
Lug-to-Lug
51mm
Material
Titanium
316L Stainless Steel
Water Resistance
200m

Crystal & Dial

1 specs
Dial Color
Blue
Green

Movement

1 specs
Caliber
SII NH35A

Pricing

1 specs
MSRP
$38,450
$350

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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.

Spinnaker Cahill Automatic

Owners widely praise the Spinnaker Cahill Automatic for its attractive vintage-inspired design, comfortable wearability on smaller wrists, and good timekeeping, with one owner specifically noting the large "maxi" indices and NATO strap as highlights. However, some find the lume application uneven and note the use of a mineral crystal. A significant concern raised by one owner is a report of internal component failures and a perceived lack of quality control within the brand. On balance, the Spinnaker Cahill Automatic is well-regarded by owners for its style and value, particularly at specific price points, despite some noted manufacturing inconsistencies.

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