Side by side

Maen Greenwich 38 GMTvsSeestern S450 Ocean Star

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

Greenwich 38 GMT
MaenGreenwich 38 GMT
MSRP $799
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 Greenwich 38 GMT

Owners and reviewers widely praise the Maen Greenwich 38 GMT for its elegant 38mm sizing, exceptional case finishing, and flawless enamel dial. The SwissTech S24-045 movement is noted for its smooth winding and accurate timekeeping, with figures ranging from zero deviation to +7 seconds per day, though its 40-hour power reserve is considered unremarkable. Some owners find the hour markers too bold, the GMT hour markings difficult to read, and the GMT hand alignment slightly off, while one user experienced crown resistance and movement stoppage. The lug-to-lug measurement is reported to make the 38mm case wear slightly larger. Overall, owners and reviewers rate the Maen Greenwich 38 GMT highly for its premium finishing and design at its price point.

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

13 of 29 specs differ
Diameter
Greenwich 38 GMT38mm
S450 Ocean Star40mm
Power Reserve
Greenwich 38 GMT40h
S450 Ocean Star41h
Water Resistance
Greenwich 38 GMT100m
S450 Ocean Star100m
MSRP
Greenwich 38 GMT$799
S450 Ocean Star$299

Full specifications

Case

4 specs
Category
GMT
Diver
Diameter
38mm
40mm
Lug-to-Lug
48mm
Lug Width
20mm

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
MGG.01
White
Lume
None
Tritium

Movement

5 specs
Caliber
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
$799
$299
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