Formex Essence FortyOnevsGrand Seiko SLGH017

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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 FortyOne at true scale

Essence FortyOne

Grand Seiko SLGH017 at true scale

SLGH017

Diameter

41mm

40mm

Lug-to-Lug

46.5mm

lowest

47mm

Thickness

10.6mm

lowest

11.7mm

Water Resistance

100m

100m

Power Reserve

41h

80h

highest

MSRP

$1,890

lowest

$10,500

Movement

Sellita SW200-1

Grand Seiko 9SA5

Case

4 specs
Diameter
41mm
40mm
Thickness
10.6mm
11.7mm
Lug-to-Lug
46.5mm
47mm
Material
Stainless Steel
Titanium

Crystal & Dial

3 specs
AR Coating
n/a
Yes
Dial Color
Arctic White
n/a
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Sellita SW200-1
Grand Seiko 9SA5
Power Reserve
41h
80h

Pricing

1 specs
MSRP
$1,890
$10,500
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Reviews

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

Formex Essence FortyOne

Owners and reviewers widely praise the Formex Essence FortyOne for its excellent bracelet comfort and quality, often considered best in its price class, along with good finishing and slim wearability. The watch is seen as a compelling value, offering a sporty-chic aesthetic and build quality that punches above its weight. Some owners dislike the brand name and logo, and the bolts around the dial are polarizing. A point of contention for some is the non-screw-down crown, raising concerns about swimming, despite its 100m water resistance rating. Overall, owners and reviewers rate the Formex Essence FortyOne highly for its exceptional bracelet comfort and finishing at its price point.

From video reviewers

The COSC-certified automatic movement is a shared strength. Reviewers did not agree on any weaknesses.

Grand Seiko SLGH017

Grand Seiko SLGH017 owners and reviewers widely praise its impeccable finishing on applied markers and handset, the mesmerizing "Night Birch" dial that comes alive under light, and the lightweight titanium construction. The high-beat 9SA5 movement is also noted as beautiful, with one owner reporting approximately 80 hours power reserve and accuracy within spec at +4 sec/day, while another saw +5 to -3 seconds per day. However, some find the SLGH017 appears thick or wide, and a few prefer the classic case design and dial of other models. Concerns are raised about the handset's proportions and the lack of lume, with some owners reporting accuracy issues with the 9SA5 movement. On balance, owners and reviewers rate the Grand Seiko SLGH017 highly for its stunning dial and finishing, despite some reservations about its case proportions and lume.