Side by side

Bremont Altitude Perpetual Calendar GMTvsBoldr Odyssey Freediver

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
Odyssey Freediver
BoldrOdyssey Freediver
MSRP $649

At a glance

12 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Odyssey Freediver40mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Odyssey Freediver40h
Water Resistance
Altitude Perpetual Calendar GMT
Odyssey Freediver300m
MSRP
Altitude Perpetual Calendar GMT$38,450
Odyssey Freediver$649

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
42mm
40mm
Thickness
12.65mm
14.2mm
Lug-to-Lug
48mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
300m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Blue
202
Lume
None
Super-LumiNova

Movement

1 specs
Caliber
Cal

Pricing

1 specs
MSRP
$38,450
$649

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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.

Boldr Odyssey Freediver

The Boldr Odyssey Freediver is praised for its bead-blasted steel case with polished bevels and a custom steel bracelet designed for wrist curvature. Reviewers note its strong legibility, applied details, and vintage-inspired date window on fresh dial colors. The 44mm case is surgical-grade steel with a brushed finish and angular lugs, water-resistant to 300 meters. It houses a Miyota 9075 movement with a jumping local hour function. On balance, reviewers highlight the Boldr Odyssey Freediver's thoughtful case finishing and functional movement with a local hour complication.

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