Side by side

Bremont Altitude Perpetual Calendar GMTvsBaltic Prismic

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
Prismic
BalticPrismic
MSRP $1,069

At a glance

13 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Prismic36mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Prismic42h
Water Resistance
Altitude Perpetual Calendar GMT
Prismic30m
MSRP
Altitude Perpetual Calendar GMT$38,450
Prismic$1,069

Full specifications

Case

7 specs
Category
GMT
Dress
Diameter
42mm
36mm
Thickness
12.65mm
9mm
Lug-to-Lug
44mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
30m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Blue
Green

Movement

3 specs
Caliber
ETA Peseux 7001
Type
Automatic
Manual
Power Reserve
40h
42h

Pricing

1 specs
MSRP
$38,450
$1,069

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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.

Baltic Prismic

The Baltic Prismic is widely praised for its unique stone dials, slim 9.2mm case, and retro-chic design, with reviewers highlighting its impressive build quality and detailed finishing for the price. Owners appreciate the complex five-part case construction using steel and titanium, and the attractive dial textures. The hand-wound ETA Peseux 7001 movement is consistently mentioned, offering a 42-hour power reserve. However, some owners find the watch overpriced and the bracelet unappealing or flaring on smaller wrists, while the 30-meter water resistance is noted as delicate. The avant-garde dial design is also described as divisive by one reviewer. Overall, owners and reviewers rate the Baltic Prismic highly for its distinctive stone dials and slim, vintage-inspired case at an accessible price point.

From video reviewers

The Baltic Prismic's unique natural stone dials, each using a slice of thousand-year-old stone, are a standout feature. A notable drawback is the price, with several reviewers mentioning it as a potential issue, particularly considering the finishing and uniqueness offered. Reviewers disagree on the watch's ruggedness, with some viewing it as a dress watch and others not mentioning this aspect.

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