Side by side

Monta NoblevsSeiko Prospex Sea

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

Noble
MontaNoble
MSRP $1,895
Prospex Sea
SeikoProspex Sea
MSRP $625

At a glance

13 of 29 specs differ
Diameter
Noble38.5mm
Prospex Sea43.8mm
Power Reserve
Noble40h
Prospex Sea41h
Water Resistance
Noble152m
Prospex Sea200m
MSRP
Noble$1,895
Prospex Sea$625

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
38.5mm
43.8mm
Thickness
12.8mm
Lug-to-Lug
47mm
48.7mm
Lug Width
22mm
Water Resistance
152m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Anthracite
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Monta M-22
4R35
Power Reserve
40h
41h
Jewels
25
23

Pricing

1 specs
MSRP
$1,895
$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.

Monta Noble

The Monta Noble is widely praised for its slim 9.7mm case, excellent finishing comparable to higher-end brands, and highly adjustable bracelet. Owners note its versatility and accuracy, with one reporting +2 sec/day. The well-executed date at six is also a positive point. However, some find the dial proportions off with small indices and too much open space, and the polished bezel a scratch magnet. There are mixed opinions on the clasp, with some finding it fiddly and others praising its adjustability. The crown action is described by one owner as mediocre, and a visible gasket is noted. The Monta Noble is priced at $1,600-$1,795 and features a Sellita SW300-based M-22 movement. Overall, owners and reviewers rate the Monta Noble highly for its slim profile and exceptional finishing at its price point.

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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