Side by side

Bremont Altitude Perpetual Calendar GMTvsSternglas Hamburg Pro Automatik

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
Hamburg Pro Automatik
SternglasHamburg Pro Automatik
MSRP $755

At a glance

12 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Hamburg Pro Automatik42mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Hamburg Pro Automatik42h
Water Resistance
Altitude Perpetual Calendar GMT
Hamburg Pro Automatik50m
MSRP
Altitude Perpetual Calendar GMT$38,450
Hamburg Pro Automatik$755

Full specifications

Case

6 specs
Category
GMT
Sport
Thickness
12.65mm
12mm
Lug-to-Lug
45mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
50m

Crystal & Dial

2 specs
Dial Color
Blue
Lume
None
Luminova Indizes

Movement

3 specs
Caliber
Miyota 8215
Power Reserve
40h
42h
Jewels
25

Pricing

1 specs
MSRP
$38,450
$755

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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.

Sternglas Hamburg Pro Automatik

Owners widely praise the Sternglas Hamburg Pro Automatik for its Bauhaus-inspired design, German assembly, and excellent value, with many appreciating its comfortable wearability and uncluttered dial. Specific positive notes include a substantial weight that feels good on the wrist and a pleasing matte dial texture. The Miyota 8215 movement is generally considered reliable and surprisingly accurate, though some owners find it louder than expected and note the lack of hacking seconds. Caveats include a minimal instruction manual, an initially stiff strap, and a date window recess that can make the date difficult to see. Owners are split on the case finishing, with some finding it not too bad and nicely polished, while others criticize it. The case is also described by some as thick, making it potentially awkward for long-sleeved shirts. On balance, owners and reviewers rate the Sternglas Hamburg Pro Automatik highly for its attractive Bauhaus design and strong value proposition.

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