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 $595

At a glance

13 of 29 specs differ
Diameter
Noble38.5mm
Prospex Sea41.7mm
Power Reserve
Noble40h
Prospex Sea41h
Water Resistance
Noble152m
Prospex Sea200m
MSRP
Noble$1,895
Prospex Sea$595

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
38.5mm
41.7mm
Thickness
12.3mm
Lug-to-Lug
47mm
49.5mm
Lug Width
20mm
Water Resistance
152m
200m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
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
$595

Follow this matchup

Get a note when Monta Noble vs Seiko Prospex Sea gets more votes, a community discussion, or a price drop. No account needed.

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

Owners and reviewers widely praise the Seiko Prospex Sea for its excellent value, robust build, and superior lume, with many noting its comfortable wearability and faithful design recreations. Some owners report the watch can feel big, thick, and heavy on smaller wrists, while others find the sizing perfect. The bezel action is frequently highlighted as smooth and precise, often exceeding that of less expensive models. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its impressive finishing and value proposition.

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.

Adjacent matchups

People also compared

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