Aera Instruments C-1vsBeaufort Bicompax

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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.

Aera Instruments C-1 at true scale

C-1

Beaufort Bicompax at true scale

Bicompax

Diameter

42mm

40.5mm

Lug-to-Lug

49.5mm

47mm

lowest

Thickness

15.8mm

13.8mm

lowest

Water Resistance

100m

highest

50m

Power Reserve

56h

63h

highest

MSRP

$2,950

$810

lowest

Movement

Sellita SW510

Sellita SW510

Case

5 specs
Diameter
42mm
40.5mm
Thickness
15.75mm
13.8mm
Lug-to-Lug
49.55mm
47mm
Lug Width
22mm
20mm
Water Resistance
100m
50m

Crystal & Dial

2 specs
Dial Color
Cloud
Salmon
Lume
None
Super-LumiNova applied to the index and hands for low-light readability.

Movement

3 specs
Type
Automatic
Manual
Power Reserve
56h
63h
Jewels
27
0

Pricing

1 specs
MSRP
$2,950
$810
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Reviews

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

Aera Instruments C-1

The Aera Instruments C-1 is praised for its excellent, distinctive design that balances tool-watch masculinity with soft, gentle aesthetics. The 42mm case size is considered large, and a smaller option would be welcome. On balance, reviewers highlight the distinctive design as the primary reason for their positive assessment.

Beaufort Bicompax

Owners widely praise the Beaufort Bicompax for its attractive bicompax chronograph design, clean aesthetic, and excellent legibility with effective lume. The Sellita SW510 BH b movement is noted for performing well, with winding and setting actions comparable to ETA movements and accuracy within COSC parameters at +5 seconds/day. Fit and finish are considered spot on, with a well-executed gradient dial and subdials, and the h-link bracelet is described as comfortable and easy to size. Some owners find the price a bit high for the specifications on paper, and one commenter felt the blue dial could have more depth. On balance, owners and reviewers rate the Beaufort Bicompax highly for its vintage aesthetic and reliable manual-wind chronograph movement at 40.5mm.