Side by side

Bremont Altitude ChronographvsFormex Reef 39.5 mm

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Altitude Chronograph
BremontAltitude Chronograph
MSRP $6,300
Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230

At a glance

12 of 29 specs differ
Diameter
Altitude Chronograph42mm
Reef 39.5 mm39.5mm
Power Reserve
Altitude Chronograph40h
Reef 39.5 mm56h
Water Resistance
Altitude Chronograph100m
Reef 39.5 mm300m
MSRP
Altitude Chronograph$6,300
Reef 39.5 mm$2,230

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
42mm
39.5mm
Thickness
14.7mm
11mm
Lug-to-Lug
45.5mm
Lug Width
14.7mm
22mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

2 specs
Dial Color
Silver
Bahama Blue
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
BE-50AE
Sellita SW300-1
Power Reserve
40h
56h

Pricing

1 specs
MSRP
$6,300
$2,230

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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 Chronograph

Owners note faint marks on the case sides and back, with minor wear and creasing on the strap. Reviewers flag the "DANGER EJECTION SEAT" wordmark on the dial as a divisive design choice that disrupts the MB series' usual stark tone, though they praise the improved smoothness and click precision of the Roto Click rotating bezel. On balance, the Bremont Altitude Chronograph elicits mixed reactions, with design elements like the dial text being a point of contention for reviewers.

Formex Reef 39.5 mm

The Formex Reef 39.5 mm is widely praised for its refined finishing, comfortable and well-proportioned case design, and impressive specifications for its price point, including COSC-certified Sellita SW300-1 movement and 300m water resistance. Owners and reviewers highlight the tool-less micro-adjust clasp and quick-release spring bars as practical features. Some reviewers note that the 22mm lug width feels slightly disproportionate to the smaller case, and the bracelet could benefit from more taper, though this is a point of contention for some owners who value the overall package. A prototype crown protrusion issue is noted as being addressed for production. On balance, owners and reviewers rate the Formex Reef 39.5 mm highly for its excellent value and well-executed design.

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