Side by side

Seestern S450 Ocean StarvsYema Superman Gilt CMM.10

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

S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299
Superman Gilt CMM.10
YemaSuperman Gilt CMM.10
MSRP $1,699

At a glance

14 of 29 specs differ
Diameter
S450 Ocean Star40mm
Superman Gilt CMM.1039mm
Power Reserve
S450 Ocean Star41h
Superman Gilt CMM.1040h
Water Resistance
S450 Ocean Star100m
Superman Gilt CMM.10300m
MSRP
S450 Ocean Star$299
Superman Gilt CMM.10$1,699

Full specifications

Case

5 specs
Diameter
40mm
39mm
Thickness
12mm
11.3mm
Lug-to-Lug
48mm
Lug Width
20mm
19mm
Water Resistance
100m
300m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
White
Black
Lume
Tritium
None

Movement

5 specs
Caliber
TMI NH35A
Yema CMM.10
Beat Rate
21,600 vph
28,800 vph
Power Reserve
41h
40h
Jewels
24
25
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$299
$1,699

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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.

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.

Yema Superman Gilt CMM.10

Owners and reviewers widely praise the Yema Superman Gilt CMM.10 for its comfortable, slim wearability and captivating gilt-accented sunburst dial, making it a frequent choice for daily wear. The in-house CMM.10 automatic movement is noted for its impressive accuracy, regulated to +5/-3 seconds per day, and a 70-hour power reserve. One owner wished for an option without gold accents, and the bracelet's articulation is mentioned as potentially not suiting smaller wrists, though a 39mm case option exists. Overall, owners and reviewers rate the Yema Superman Gilt CMM.10 highly for its value and comfortable, attractive design.

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