Side by side

Bremont Altitude Perpetual Calendar GMTvsSpinnaker Hass Automatic

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
Hass Automatic
SpinnakerHass Automatic
MSRP $445

At a glance

9 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Hass Automatic43mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Hass Automatic40h
Water Resistance
Altitude Perpetual Calendar GMT
Hass Automatic300m
MSRP
Altitude Perpetual Calendar GMT$38,450
Hass Automatic$445

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
42mm
43mm
Thickness
12.65mm
16.5mm
Lug-to-Lug
50mm
Material
Titanium
316L Stainless Steel
Water Resistance
300m

Crystal & Dial

1 specs
Dial Color
Blue
Flying Dutchman

Movement

1 specs
Caliber
SII NH35A

Pricing

1 specs
MSRP
$38,450
$445

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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.

Spinnaker Hass Automatic

The Spinnaker Hass Automatic is a 43mm watch featuring an NH35 movement and sapphire crystal, with owners highlighting its beautiful dial. Some find Spinnaker watches, including this model, to be on the thicker side, with one owner describing the Hass X MCS Blue Fade variant as comically large and chunky. The Spinnaker Hass Automatic was offered at $445 USD as part of a special collection with customized elements, and a limited edition of 200 pieces was also available for $195 shipped. On balance, owners and reviewers note the attractive dial as a key positive, though some express reservations about the watch's thickness.

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