Side by side

Bremont Altitude Perpetual Calendar GMTvsZelos Hammerhead (Tantalum LE)

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
Hammerhead (Tantalum LE)
ZelosHammerhead (Tantalum LE)
MSRP $1,499

At a glance

9 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Hammerhead (Tantalum LE)44mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Hammerhead (Tantalum LE)40h
Water Resistance
Altitude Perpetual Calendar GMT
Hammerhead (Tantalum LE)300m
MSRP
Altitude Perpetual Calendar GMT$38,450
Hammerhead (Tantalum LE)$1,499

Full specifications

Case

5 specs
Category
GMT
Diver
Diameter
42mm
44mm
Thickness
12.65mm
13mm
Lug-to-Lug
44mm
Water Resistance
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Blue
Tantalum LE

Movement

1 specs
Caliber
Seiko NH35

Pricing

1 specs
MSRP
$38,450
$1,499

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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 Hammerhead (Tantalum LE)

The Zelos Hammerhead (Tantalum LE) features a forged carbon dial and bezel insert with infused lume. On balance, owners and reviewers rate the Zelos Hammerhead (Tantalum LE) highly for its unique material composition and substantial feel.

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