Side by side

Monta AtlasvsSeiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

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

Atlas
MontaAtlas
MSRP $2,150

At a glance

14 of 29 specs differ
Diameter
Atlas38.5mm
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition44mm
Power Reserve
Atlas40h
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition50h
Water Resistance
Atlas152m
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition200m
MSRP
Atlas$2,150
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition$3,300

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
38.5mm
44mm
Thickness
13mm
Lug-to-Lug
49.3mm
Lug Width
20mm
Water Resistance
152m
200m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Silver
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Monta M-23
8L35
Power Reserve
40h
50h
Jewels
25
26

Pricing

1 specs
MSRP
$2,150
$3,300

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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 Atlas

The Monta Atlas is widely praised for its exceptional wearability, with its comfortable 38.5mm case size and buttery bracelet frequently highlighted. Owners and reviewers alike commend its fit and finish, noting a mix of brushed, polished, and blasted surfaces. However, the rehaut on the opaline silver dial is considered nearly illegible for the 24-hour GMT scale, leading some to suggest other dial colors are more practical for GMT functionality. One owner also flagged the crown as less sturdy than anticipated and noted the AR coating attracts fingerprints. Overall, owners and reviewers rate the Monta Atlas highly for its comfortable dimensions and appealing finishing.

From video reviewers

The Monta Opalin Silver's dial is a notable strength, particularly its subtle gradient effect that adds depth to the watch without being too flashy. The watch offers a notable value proposition due to its movement, typically found in more expensive timepieces. The bracelet can be prone to rattle, which might be a trade-off for some buyers.

Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

Owners widely praise the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition for its attractive, well-made design and gorgeous dial, noting its jewel-toned teal color and rippling-water pattern. The bezel action is smooth with a muted sound, and the case and bracelet offer a more comfortable feel than previous iterations. However, multiple owners express disappointment with the accuracy of the 6R movement at its price point, with some noting theirs runs slow, and consider the price too high. The steep rehaut and marker size make the 24-hour numbers difficult to read, and some find the case design makes the watch feel top-heavy despite wearing smaller. Overall, owners rate the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition highly for its striking dial and refined case design, despite concerns regarding movement accuracy at its price.

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