Side by side

Oblvlo IM TourbillonvsSeestern S450 Ocean Star

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

IM Tourbillon
OblvloIM Tourbillon
MSRP $810
S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299

At a glance

14 of 29 specs differ
Diameter
IM Tourbillon42mm
S450 Ocean Star40mm
Power Reserve
IM Tourbillon65h
S450 Ocean Star41h
Water Resistance
IM Tourbillon50m
S450 Ocean Star100m
MSRP
IM Tourbillon$810
S450 Ocean Star$299

Full specifications

Case

6 specs
Category
Skeleton
Diver
Diameter
42mm
40mm
Thickness
12.5mm
12mm
Lug-to-Lug
46mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
100m

Crystal & Dial

2 specs
Dial Color
Black
White
Lume
Super-LumiNova
Tritium

Movement

5 specs
Caliber
OBL.8024
TMI NH35A
Beat Rate
28,800 vph
21,600 vph
Power Reserve
65h
41h
Jewels
20
24
Complications
Tourbillon
GMT, Date

Pricing

1 specs
MSRP
$810
$299

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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.

Oblvlo IM Tourbillon

Owners widely praise the Oblvlo IM Tourbillon for its skeletonized dial and carbon fiber case finishing, noting it looks more expensive than its price. However, some owners find the minute markers difficult to read, impacting time setting, and accuracy averages around -10 seconds per day. Concerns also exist regarding long-term reliability and parts availability for Chinese tourbillons. On balance, owners rate the Oblvlo IM Tourbillon highly for its visually striking aesthetic and perceived value, despite practical readability and accuracy drawbacks.

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.

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