Side by side

Bremont Altitude Perpetual Calendar GMTvsBoldr Expedition Enigmath

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
Expedition Enigmath
BoldrExpedition Enigmath
MSRP $599

At a glance

13 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Expedition Enigmath41mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Expedition Enigmath42h
Water Resistance
Altitude Perpetual Calendar GMT
Expedition Enigmath200m
MSRP
Altitude Perpetual Calendar GMT$38,450
Expedition Enigmath$599

Full specifications

Case

7 specs
Category
GMT
Tool
Diameter
42mm
41mm
Thickness
12.65mm
12.8mm
Lug-to-Lug
47.5mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
200m

Crystal & Dial

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

Movement

2 specs
Caliber
Miyota 9039,
Power Reserve
40h
42h

Pricing

1 specs
MSRP
$38,450
$599

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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 Expedition Enigmath

The watch's slide rule function is a convenient feature, allowing for calculations on the go. One potential drawback is the use of the Japanese Miyota 9039 movement, which may be a trade-off for some buyers. Reviewers disagree on whether the quick 'on the fly' adjust bracelet is a more significant advantage than the watch's sapphire crystal for durability and scratch resistance.

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