Aera Instruments C-1vsIWC Schaffhausen Iw3716 Portugieser Chronograph

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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

IWC Schaffhausen Iw3716 Portugieser Chronograph at true scale

Iw3716 Portugieser Chronograph

Diameter

42mm

41mm

Lug-to-Lug

49.5mm

n/a

Thickness

15.8mm

13mm

lowest

Water Resistance

100m

highest

30m

Power Reserve

56h

highest

46h

MSRP

$2,950

lowest

$23,500

Movement

Sellita SW510

69355

Case

7 specs
Diameter
42mm
41mm
Thickness
15.75mm
13mm
Lug-to-Lug
49.55mm
n/a
Lug Width
22mm
20mm
Material
Stainless Steel
18 Ct 5N Gold
Finish
n/a
Steel
Water Resistance
100m
30m

Crystal & Dial

2 specs
Crystal
Sapphire
n/a
Dial Color
Cloud
Silver

Movement

6 specs
Caliber
Sellita SW510
69355
Beat Rate
0 vph
28,800 vph
Power Reserve
56h
46h
Hacking
No
Yes
Hand-winding
No
Yes
Complications
None
Chronograph

Pricing

1 specs
MSRP
$2,950
$23,500
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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.

IWC Schaffhausen Iw3716 Portugieser Chronograph

Owners widely praise the IWC Schaffhausen Iw3716 Portugieser Chronograph for its legible and handsome design, with specific appreciation for the contrasting blue subdials on a white dial, often referred to as the "Blue Panda." The comfortable blue rubber strap is noted as versatile, though some suggest a leather strap for formal settings. The in-house automatic Calibre 69355 movement is visible through the display caseback, and its column-wheel chronograph actuation is described as crisp and smooth. One owner reported the watch arriving DOA and found damaged parts during attempted repairs, while another noted that the chronograph function should be used sparingly to avoid issues. The 30m water resistance is considered a minor drawback by reviewers. Overall, owners and reviewers rate the IWC Schaffhausen Iw3716 Portugieser Chronograph highly for its attractive aesthetic and refined movement at its price point.