Side by side

Bremont Altitude Perpetual Calendar GMTvsGlycine Airman Worldtimer

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
Airman Worldtimer
GlycineAirman Worldtimer
MSRP $1,395

At a glance

16 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Airman Worldtimer42mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Airman Worldtimer
Water Resistance
Altitude Perpetual Calendar GMT
Airman Worldtimer100m
MSRP
Altitude Perpetual Calendar GMT$38,450
Airman Worldtimer$1,395

Full specifications

Case

5 specs
Thickness
12.65mm
14mm
Material
Titanium
Stainless Steel
Finish
Brushed and polished
Water Resistance
100m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Blue
Black
Indices
Applied

Movement

6 specs
Caliber
RONDA 515
Type
Automatic
Quartz
Beat Rate
28,800 vph
Power Reserve
40h
Jewels
25
1
Complications
None
Date, World Time

Pricing

1 specs
MSRP
$38,450
$1,395

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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.

Glycine Airman Worldtimer

The Glycine Airman Worldtimer is widely appreciated for its classic pilot watch design and comfortable wearability, with owners specifically praising the 40mm GL1048's size and the 39mm Airman 18's legibility and build quality. The Airman 18's dial lume pips are noted as weaker than its hands, and some owners find the GMT hand on certain models difficult to read due to its thinness and lack of lume. Accuracy is generally acceptable, with one owner reporting no flaws and another noting a Sellita-based movement kept acceptable time. On balance, owners and reviewers rate the Glycine Airman Worldtimer highly for its faithful reproduction of a classic design and excellent value.

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