Side by side

Furlan Marri Disco Onyx DiamondsvsSeiko Prospex Sea

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

Disco Onyx Diamonds
Furlan MarriDisco Onyx Diamonds
MSRP $3,955
Prospex Sea
SeikoProspex Sea
MSRP $625

At a glance

13 of 29 specs differ
Diameter
Disco Onyx Diamonds38mm
Prospex Sea43.8mm
Power Reserve
Disco Onyx Diamonds42h
Prospex Sea41h
Water Resistance
Disco Onyx Diamonds50m
Prospex Sea200m
MSRP
Disco Onyx Diamonds$3,955
Prospex Sea$625

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
38mm
43.8mm
Thickness
8.1mm
12.8mm
Lug-to-Lug
46mm
48.7mm
Lug Width
20mm
22mm
Water Resistance
50m
200m

Crystal & Dial

2 specs
AR Coating
Yes
Anti-reflective coating on inner surface
Lume
BGW9 Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Peseux 7001
4R35
Type
Manual
Automatic
Power Reserve
42h
41h
Jewels
24
23

Pricing

1 specs
MSRP
$3,955
$625

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What people say

Owners + reviewers, side by side

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

Furlan Marri Disco Onyx Diamonds

The Furlan Marri Disco Onyx Diamonds is lauded for its striking black onyx dial, elegant lab-grown baguette diamond hour markers, and art deco design. Owners and reviewers highlight the watch's beautiful appearance and vintage charm, noting its comfortable 38mm case with hidden lugs and a slim 8.95mm profile. The manual-winding Peseux 7001 movement, decorated and considered a good fit for the slim case, is also a point of praise. However, some find the CHF 3,500 price steep for a microbrand watch with an off-the-shelf movement and case, with one owner noting this diamond-embellished version is significantly more expensive than other Furlan Marri models. The design is also noted by one source as potentially reminiscent of other brands. Overall, owners and reviewers rate the Furlan Marri Disco Onyx Diamonds highly for its luxurious dial and diamond indices, despite some reservations about its price and movement origin.

Seiko Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value, solid build quality, and comfortable wearability, with many models featuring impressive lume and attractive dials. Owners and reviewers highlight the modern upgrades on classic designs, such as drilled lugs and reliable movements with hacking and hand-winding capabilities. Some models are noted for their refined case finishing and scratch resistance. Accuracy figures vary, with one owner reporting approximately 4 seconds fast per day, while others find the movements offer good performance for the price. Concerns raised by owners and reviewers include clasps that can feel generic or cheap, and lug widths that some find disproportionate to the case size on certain models. The thickness and weight of some Prospex Sea watches are also noted as substantial. The GMT function on specific models is considered secondary and difficult to read for true travel purposes.

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