Side by side

Maen Manhattan 40 MSDvsSeestern S450 Ocean Star

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

Manhattan 40 MSD
MaenManhattan 40 MSD
MSRP $1,249
S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299
What people say

Owners + reviewers, side by side

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

Maen Manhattan 40 MSD

The Maen Manhattan 40 MSD is widely praised for its refined, architectural design, particularly its slim 9.6mm case, integrated bracelet that feels engineered as part of the case, and highly finished surfaces. Owners specifically highlight the stunning jade dial and the Midnight Blue dial's transformation in sunlight. The 70s-inspired integrated bracelet is noted as thin yet strong, and the 100m water resistance is a concrete feature. However, some enthusiasts find the 49.3mm lug-to-lug measurement too large for a retro-inspired rectangular watch, suggesting it wears large, while others with larger wrists appreciate the option, and some feel it wears smaller than its dimensions imply. The Sellita SW200 movement has a 38-hour power reserve, and the printed logo appears flat against the applied indices, with the integrated bracelet limiting strap change options.

Seestern S450 Ocean Star

Owners widely praise the Seestern S450 Ocean Star's Yachtmaster-style case and flawless bracelet finishing, with one owner noting the ST2130 movement keeps good time. The bezel action is described as having individual notches but feeling like a friction bezel, while another owner flags the bezel and crown action as smooth with perfect alignment. Lume is a point of contention, with one source describing it as a nice cool blue with ice-white application, while others note it as weak or not matching Prospex standards, despite using BGW-9. The watch is considered a "big boy" ideal for larger wrists (19cm+), potentially too large for 17cm wrists due to its size and non-tapering bracelet. Overall, owners rate the Seestern S450 Ocean Star highly for its build quality and finishing at the price point, despite some reservations about its size and lume intensity.

At a glance

12 of 29 specs differ
Diameter
Manhattan 40 MSD40mm
S450 Ocean Star40mm
Power Reserve
Manhattan 40 MSD40h
S450 Ocean Star41h
Water Resistance
Manhattan 40 MSD100m
S450 Ocean Star100m
MSRP
Manhattan 40 MSD$1,249
S450 Ocean Star$299

Full specifications

Case

4 specs
Category
Dress
Diver
Thickness
12mm
Lug-to-Lug
48mm
Lug Width
20mm

Crystal & Dial

2 specs
Dial Color
MSD.01
White
Lume
None
Tritium

Movement

5 specs
Caliber
Sellita SW200-1
TMI NH35A
Beat Rate
28,800 vph
21,600 vph
Power Reserve
40h
41h
Jewels
25
24
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$1,249
$299
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