Side by side

Formex Essence FortyOnevsSeiko Prospex Sea

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

What people say

Owners + reviewers, side by side

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

Formex Essence FortyOne

Owners widely praise the Formex Essence for its comfortable bracelet, excellent finishing, and slim wearability, with some considering it the best in its price range. Reviewers highlight its compelling value, sporty-chic aesthetic, and build quality that suggests a more expensive product, noting the patented suspension system and chronometer-certified movement. Some owners dislike the brand name and logo, and the dial design is considered derivative by some. The 43mm case wears well due to its 10mm thickness and 49mm lug-to-lug, though some find it large on smaller wrists. A point of contention for some is the non-screw-down crown, despite its 100m water resistance. Overall, owners and reviewers rate the Formex Essence highly for its exceptional comfort and build quality at its price point.

Seiko Prospex Sea

Seiko Prospex Sea models are widely praised for their excellent build quality, value for money, and comfortable wearability, with many appreciating the vintage-inspired designs and robust construction. Owners note the silicone straps are surprisingly comfortable and well-finished, and the Lumibrite lume is excellent. However, some find the 44.3mm size and thickness too large for smaller wrists, though others report the sizing as perfect. The 6R15 movement in some variants offers accuracy around +4 seconds per day with a 50-hour power reserve, while newer movements offer more. Some models are criticized for a bracelet width not matching the case size or a rudimentary clasp for their price point. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its impressive case work and finishing at its price point.

At a glance

13 of 29 specs differ
Diameter
Essence FortyOne41mm
Prospex Sea41.3mm
Power Reserve
Essence FortyOne41h
Prospex Sea72h
Water Resistance
Essence FortyOne100m
Prospex Sea300m
MSRP
Essence FortyOne$1,890
Prospex Sea$1,100

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
41mm
41.3mm
Thickness
10.6mm
12.5mm
Lug-to-Lug
46.5mm
48.2mm
Lug Width
22mm
20mm
Water Resistance
100m
300m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Dial Color
Arctic White
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW200-1
6R55
Power Reserve
41h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$1,890
$1,100
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