Side by side

Bremont Altitude Perpetual Calendar GMTvsZelos Comet 39

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
Comet 39
ZelosComet 39
MSRP $2,499

At a glance

12 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Comet 3939mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Comet 3940h
Water Resistance
Altitude Perpetual Calendar GMT
Comet 3950m
MSRP
Altitude Perpetual Calendar GMT$38,450
Comet 39$2,499

Full specifications

Case

7 specs
Category
GMT
Dress
Diameter
42mm
39mm
Thickness
12.65mm
7.6mm
Lug-to-Lug
39mm
Lug Width
22mm
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
50m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Blue
Tantalum LE

Movement

2 specs
Caliber
ETA/Peseux 7001
Type
Automatic
Manual

Pricing

1 specs
MSRP
$38,450
$2,499

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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.

Zelos Comet 39

Owners widely praise the Zelos Comet 39 for its wearable 39mm size, thin profile under 10mm thanks to its manual-wind Sellita SW215 movement, and its captivating dial with a deep starburst effect. The winding action is described as a joy, and the watch is considered a stunner for its price, blending modern and vintage aesthetics. Some owners note frustration with Zelos's limited production runs leading to quick sell-outs. One owner found the logo childlike, while another experienced strap-rubbing issues with the short lugs, which were resolved with a Milanese bracelet. Overall, owners and reviewers rate the Zelos Comet 39 highly for its excellent value and striking dial design.

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