Bremont Altitude ChronographvsCertina DS-1 Chrono Auto

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Bremont Altitude Chronograph at true scale

Altitude Chronograph

Certina DS-1 Chrono Auto at true scale

DS-1 Chrono Auto

Diameter

42mm

42mm

Lug-to-Lug

n/a

49.7mm

Thickness

14.7mm

14.3mm

lowest

Water Resistance

100m

100m

MSRP

$6,300

$2,164

lowest

Movement

Bremont BE-50AE

Tissot Valjoux A05.231

Case

4 specs
Thickness
14.7mm
14.32mm
Lug-to-Lug
n/a
49.68mm
Lug Width
14.7mm
21mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel

Crystal & Dial

1 specs
Dial Color
Silver
n/a

Movement

1 specs
Caliber
Bremont BE-50AE
Tissot Valjoux A05.231

Pricing

1 specs
MSRP
$6,300
$2,164
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Bremont Altitude Chronograph

The Bremont Altitude Chronograph is noted for its improved Roto Click bezel, offering better smoothness and click precision. Owners observe faint marks on the case sides and back, along with strap wear. One review flags the "DANGER EJECTION SEAT" wordmark on the dial as a divisive design choice that deviates from the MB series' usual tone. On balance, reviewers find the Bremont Altitude Chronograph to be a well-built watch with a refined bezel action, though some find dial text polarizing.

Certina DS-1 Chrono Auto

Owners widely praise the Certina DS-1 Chrono Auto for its elegant design, value, and 100m water resistance. Reviewers highlight its handsome, sober tool-like demeanor and good build quality from Swatch Group. One owner notes the watch is a dressier option than a dive watch, appreciating its Super-LumiNova and AR sapphire crystal. The 42mm case is described as not feeling too large due to a relatively thin profile. Some owners report the included leather strap can be uncomfortable and the clasp sharp. One reviewer noted the date window on a similar model appeared disproportionate and the crystal attracted glare due to a lack of AR coating, though other sources mention AR sapphire crystal. Accuracy figures vary, with one owner seeing +4s/day and another noting the Valjoux A05.231 movement. Overall, owners and reviewers rate the Certina DS-1 Chrono Auto highly for its handsome design and strong value proposition.