Side by side

Formex Essence FortythreevsSeiko Prospex Sea The Black Series

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 Fortythree

Owners widely praise the Formex Essence Fortythree for its comfortable wearability, excellent finishing for its price point, and a dial that plays well with light, with one owner noting the blue dial's variable appearance. The bracelet's micro-adjust system is functional, and the leather strap and deployant are considered exceptional. Reviewers highlight the watch's legible design and slim 10mm case, noting its significant value under $1,300. Some find the dial design derivative and the hardware-style logo out of place, while others consider the white dial stark. Consumer confusion exists regarding COSC versus non-COSC movement options. On balance, owners and reviewers rate the Formex Essence Fortythree highly for its luxury-level finishing and comfortable, value-driven design.

Seiko Prospex Sea The Black Series

The Seiko Prospex Sea The Black Series is widely praised for its impressive value and compelling design elements. Reviewers highlight the SLA073's cave-diving-inspired dial, high-quality bracelet, and the robust 8L35 movement, calling it a standout release. The SRPE33 and SRPE39 models are noted for their attractive price, manta ray decorated dials, and excellent LumiBrite lume, though bezel alignment can be inconsistent. The SNJ029 is celebrated for its dynamic, colorful aesthetic, solar charging, and comfortable strap, making it ideal for outdoor adventures. Overall, the consensus is that Seiko Prospex Sea The Black Series models offer excellent value, with specific models lauded for their unique dials, quality finishing, and practical features like solar charging.

At a glance

11 of 29 specs differ
Diameter
Essence Fortythree43mm
Prospex Sea The Black Series45mm
Power Reserve
Essence Fortythree38h
Prospex Sea The Black Series41h
Water Resistance
Essence Fortythree100m
Prospex Sea The Black Series200m
MSRP
Essence Fortythree$1,850
Prospex Sea The Black Series$765

Full specifications

Case

5 specs
Category
Dress
Diver
Diameter
43mm
45mm
Thickness
10.6mm
13.2mm
Lug-to-Lug
49mm
47.7mm
Water Resistance
100m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW200-1
4R36
Power Reserve
38h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$1,850
$765
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when Formex Essence Fortythree vs Seiko Prospex Sea The Black Series gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.