Side by side

Seestern S450 Ocean StarvsLongines LONGINES MASTER COLLECTION

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

S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299
LONGINES MASTER COLLECTION
LonginesLONGINES MASTER COLLECTION
MSRP $2,850

At a glance

14 of 29 specs differ
Diameter
S450 Ocean Star40mm
LONGINES MASTER COLLECTION38.5mm
Power Reserve
S450 Ocean Star41h
LONGINES MASTER COLLECTION72h
Water Resistance
S450 Ocean Star100m
LONGINES MASTER COLLECTION30m
MSRP
S450 Ocean Star$299
LONGINES MASTER COLLECTION$2,850

Full specifications

Case

6 specs
Category
Diver
Diameter
40mm
38.5mm
Thickness
12mm
10.2mm
Lug-to-Lug
48mm
44.9mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
30m

Crystal & Dial

2 specs
Dial Color
White
Ivory
Lume
Tritium
None

Movement

5 specs
Caliber
TMI NH35A
L893.5
Beat Rate
21,600 vph
28,800 vph
Power Reserve
41h
72h
Jewels
24
25
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$299
$2,850

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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.

LONGINES MASTER COLLECTION

Owners widely praise the Longines Master Collection for its attractive designs, heritage feel, and value, with specific models highlighted for their legibility and manageable sizes. One owner finds the 40mm moonphase chronograph complete calendar mesmerizing and versatile at around $1700, while another appreciates the 38mm World Timer's looks and blue hands. A drawback noted across different models is limited water resistance, with one owner selling their watch due to this, and the World Timer disc requiring manual adjustment for daylight saving time in some areas. On balance, owners rate the Longines Master Collection highly for its aesthetic appeal and value proposition, despite some limitations in water resistance and functionality.

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