Side by side

Bremont Altitude Perpetual Calendar GMTvsGlycine Airman No. 1 GMT

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 No. 1 GMT
GlycineAirman No. 1 GMT
MSRP $2,800

At a glance

16 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Airman No. 1 GMT36mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Airman No. 1 GMT48h
Water Resistance
Altitude Perpetual Calendar GMT
Airman No. 1 GMT30m
MSRP
Altitude Perpetual Calendar GMT$38,450
Airman No. 1 GMT$2,800

Full specifications

Case

7 specs
Diameter
42mm
36mm
Thickness
12.65mm
11.6mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Finish
Brushed and polished
Water Resistance
30m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Blue
Silver
Indices
Applied
Lume
None
Luminous

Movement

3 specs
Caliber
SW330-2
Power Reserve
40h
48h
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$38,450
$2,800

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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 No. 1 GMT

Owners widely praise the Glycine Airman No. 1 GMT for its historical significance and attractive dial. However, some find the 36mm case size to be a bit small, and the GMT hand can be difficult to distinguish from the minute hand. The watch has a very limited 3ATM water resistance. Later versions feature sapphire crystals, differing from earlier plexi models. Overall, owners value the Glycine Airman No. 1 GMT for its historical appeal and dial design, despite minor legibility and sizing concerns.

From video reviewers

The case finishing and dial colors are praised. The value proposition is tied to a sale price, with questions about long-term competitiveness.

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