Formex Essence ThirtyNinevsIWC Schaffhausen Iw3583xx Portugieser Automatic

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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.

Formex Essence ThirtyNine at true scale

Essence ThirtyNine

IWC Schaffhausen Iw3583xx Portugieser Automatic at true scale

Iw3583xx Portugieser Automatic

Diameter

39mm

40.4mm

Lug-to-Lug

45mm

n/a

Thickness

10mm

lowest

12.3mm

Water Resistance

100m

highest

30m

Power Reserve

41h

60h

highest

MSRP

$2,390

lowest

$7,700

Movement

Sellita SW200-1

IWC Caliber 82xxx

Case

5 specs
Diameter
39mm
40.4mm
Thickness
10mm
12.3mm
Lug-to-Lug
45mm
n/a
Finish
n/a
Steel
Water Resistance
100m
30m

Crystal & Dial

3 specs
Crystal
Sapphire
n/a
Dial Color
Space Ghost
Silver
Lume
Super-LumiNova
None

Movement

6 specs
Caliber
Sellita SW200-1
IWC Caliber 82xxx
Beat Rate
0 vph
28,800 vph
Power Reserve
41h
60h
Jewels
0
31
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$2,390
$7,700
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Reviews

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

Formex Essence ThirtyNine

The Formex Essence ThirtyNine is widely praised for its build quality and value, featuring a patented case suspension system for comfort and protection. Reviewers note its 39mm case with a 10mm thickness and 45mm lug-to-lug distance, housing a COSC-certified Sellita SW200-1 movement. It includes a tool-free strap quick-release system and a patented micro-adjusting bracelet for comfort, with pricing around $1,280-$1,390. One minor inconvenience noted is the clasp's specific closing order. Overall, owners and reviewers rate the Formex Essence ThirtyNine highly for its comfortable wearability and excellent value proposition.

From video reviewers

The case suspension system enhances comfort and the COSC-certified movement is a strong feature. The bracelet exhibits noticeable rattle. Reviewers disagreed on the ideal case size, with some preferring the 39mm and others the 41mm.

IWC Schaffhausen Iw3583xx Portugieser Automatic

The IWC Schaffhausen Iw3583xx Portugieser Automatic is widely praised for its timeless design and a comfortable 40.4mm case size, offering a daily-wearable, compact interpretation of the classic Portugieser aesthetic. Owners and reviewers highlight the in-house Calibre 82200 movement, noting its Pellaton winding system and attractive finishing with perlage and côtes de Genève. Some owners find the dial layout of larger variants more appealing, and one reviewer suggests the case could be slightly thinner, while others note the lugs appear long but curve well. Accuracy figures vary, with one owner reporting -7 seconds per day as advertised, and another experiencing winding issues that impacted power reserve. On balance, owners and reviewers rate the IWC Schaffhausen Iw3583xx Portugieser Automatic highly for its classic design and comfortable wearability in a more compact case.