Side by side

Seestern S450 Ocean StarvsLongines CONQUEST

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

S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299
CONQUEST
LonginesCONQUEST
MSRP $4,750

At a glance

20 of 29 specs differ
Diameter
S450 Ocean Star40mm
CONQUEST30mm
Power Reserve
S450 Ocean Star41h
CONQUEST
Water Resistance
S450 Ocean Star100m
CONQUEST100m
MSRP
S450 Ocean Star$299
CONQUEST$4,750

Full specifications

Case

8 specs
Category
Diver
Diameter
40mm
30mm
Thickness
12mm
9.7mm
Lug-to-Lug
48mm
37.8mm
Lug Width
20mm
15mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Indices
Applied
Lume
Tritium
None

Movement

7 specs
Caliber
TMI NH35A
L592.5
Beat Rate
21,600 vph
0 vph
Power Reserve
41h
0h
Jewels
24
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$299
$4,750

Follow this matchup

Get a note when Seestern S450 Ocean Star vs Longines CONQUEST gets more votes, a community discussion, or a price drop. No account needed.

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.

Longines CONQUEST

Owners widely praise the Longines CONQUEST for its excellent price-performance ratio, high-quality finishing, and versatile design, with many highlighting its comfortable wearability due to curved lugs. The smooth winding action and attractive dial colors are also frequently cited positives. However, reviewers and owners consistently note the bracelet's lack of on-the-go micro-adjustment, which can impact fit, and several find the lume to be weak. One owner reported the crown and guards rubbing against the wrist when typing. On balance, owners and reviewers rate the Longines CONQUEST highly for its impressive finishing and value, despite minor bracelet and lume drawbacks.

From video reviewers

The watch's wearable case size and dial work are highlighted as strengths. The bracelet's end-link fit is cited as a weakness.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.