Side by side

Bremont Altitude Perpetual Calendar GMTvsSpinnaker Croft 39 GMT

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
Croft 39 GMT
SpinnakerCroft 39 GMT
MSRP $445

At a glance

9 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Croft 39 GMT39mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Croft 39 GMT40h
Water Resistance
Altitude Perpetual Calendar GMT
Croft 39 GMT100m
MSRP
Altitude Perpetual Calendar GMT$38,450
Croft 39 GMT$445

Full specifications

Case

6 specs
Diameter
42mm
39mm
Thickness
12.65mm
13mm
Lug-to-Lug
47mm
Lug Width
22mm
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
100m

Crystal & Dial

1 specs
Dial Color
Blue
Red

Movement

1 specs
Caliber
Seiko NH34A

Pricing

1 specs
MSRP
$38,450
$445

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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 Croft 39 GMT

Owners praise the Spinnaker Croft 39 GMT for its colorful design, NH34 GMT movement, and reasonable price, noting high-standard manufacturing on the case, bezel, and bracelet. One owner finds the 43mm case and 51mm lug-to-lug dimensions too large for the design, preferring a 39-40mm case size. A potential issue with the lume was noted by one user. On balance, owners value the Spinnaker Croft 39 GMT for its attractive design and build quality at its price point, though sizing is a point of contention for some.

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