Side by side

Bremont ALT1-CvsBell & Ross BR-X1 TOURBILLON SAPPHIRE CHRONOGRAPH

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

ALT1-C
BremontALT1-C
MSRP $6,150
BR-X1 TOURBILLON  SAPPHIRE CHRONOGRAPH
Bell & RossBR-X1 TOURBILLON SAPPHIRE CHRONOGRAPH
MSRP $486,000

At a glance

19 of 29 specs differ
Diameter
ALT1-C43mm
BR-X1 TOURBILLON SAPPHIRE CHRONOGRAPH45mm
Power Reserve
ALT1-C40h
BR-X1 TOURBILLON SAPPHIRE CHRONOGRAPH
Water Resistance
ALT1-C100m
BR-X1 TOURBILLON SAPPHIRE CHRONOGRAPH
MSRP
ALT1-C$6,150
BR-X1 TOURBILLON SAPPHIRE CHRONOGRAPH$486,000

Full specifications

Case

7 specs
Diameter
43mm
45mm
Thickness
16mm
Lug Width
22mm
Material
316L Stainless Steel
Sapphire
Finish
Brushed and polished
Water Resistance
100m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Dial Color
Regular length (15cm - 19cm wrist size)
Skeleton
Indices
Applied
Applied indices
Lume
None
Super-LumiNova

Movement

6 specs
Caliber
BE-50AE
BR-CAL.285
Type
Automatic
Manual
Beat Rate
28,800 vph
Power Reserve
40h
Jewels
25
Complications
None
Hours/Minutes, Chronograph, Power Reserve Indicator, Tourbillon

Pricing

1 specs
MSRP
$6,150
$486,000

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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 ALT1-C

Owners widely praise the Bremont ALT1-C for its flawless brushed case finish, attractive cream dial with excellent contrast from anthracite sub-dials, and comfortable, balanced wearability. The watch features a well-finished strap and a movement that is a joy to wind, with precise chronograph operation. Reviewers note refined feuille hands and polished Arabic numerals with a golden tinge, balancing ruggedness with elegance. The Bremont ALT1-C averages +3 seconds per day, though one reviewer flags its 16mm height as less than ideal for under-cuff wear and describes the date window as narrow. The modified Valjoux 7750 movement's rotor spin is noticeable. Overall, owners rate the Bremont ALT1-C highly for its refined aesthetics and enjoyable user experience.

Bell & Ross BR-X1 TOURBILLON SAPPHIRE CHRONOGRAPH

The Bell & Ross BR-X1 TOURBILLON SAPPHIRE CHRONOGRAPH is noted for its modern, Transformer-like 45mm case and superb, qualitative finishing on its skeletonized sapphire dial. The manually wound BR-CAL.283 movement offers a 4-day power reserve. However, the movement's use of a Dubois-Depraz module over an ETA base is a point of consideration against competitors with in-house calibers, and the watch carries a high price point, with limited editions ranging from $163,000 to $238,000. Overall, reviewers highlight the Bell & Ross BR-X1 TOURBILLON SAPPHIRE CHRONOGRAPH's impressive finishing and unique aesthetic as key strengths, despite its considerable cost and modular movement construction.

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