Side by side

Bremont Altitude Perpetual Calendar GMTvsTissot Seastar 1000 Chronograph

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
Seastar 1000 Chronograph
TissotSeastar 1000 Chronograph
MSRP $650

At a glance

12 of 29 specs differ
Diameter
Altitude Perpetual Calendar GMT42mm
Seastar 1000 Chronograph45.5mm
Power Reserve
Altitude Perpetual Calendar GMT40h
Seastar 1000 Chronograph40h
Water Resistance
Altitude Perpetual Calendar GMT
Seastar 1000 Chronograph300m
MSRP
Altitude Perpetual Calendar GMT$38,450
Seastar 1000 Chronograph$650

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
42mm
45.5mm
Thickness
12.65mm
12.82mm
Lug-to-Lug
45.5mm
Material
Titanium
Stainless Steel
Water Resistance
300m

Crystal & Dial

4 specs
AR Coating
Inner
Yes
Dial Color
Blue
Black
Indices
Applied
Indexes
Lume
None
Super-LumiNova ®

Movement

1 specs
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$38,450
$650

Follow this matchup

Get a note when Bremont Altitude Perpetual Calendar GMT vs Tissot Seastar 1000 Chronograph gets more votes, a community discussion, or a price drop. No account needed.

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.

Tissot Seastar 1000 Chronograph

Owners widely praise the Tissot Seastar 1000 Chronograph for its captivating blue dial, excellent case finishing, and legible matte dial, with some noting its Powermatic 80 movement offers remarkable accuracy averaging -0.6 seconds per day and an 80-hour power reserve. The ceramic bezel is also frequently highlighted as exceptionally well-done, and the bracelet is described as surprisingly strong. However, multiple owners report issues including bezel looseness, paint chipping, flooding, a broken crown, and a protruding case back causing discomfort. Some find the watch too large, with one owner noting unfinished case sides and a crown pattern that digs into fingers. Overall, owners rate the Tissot Seastar 1000 Chronograph highly for its impressive finishing and value, despite a notable number of reports concerning durability and comfort issues.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.