Side by side

Citizen Tsuyosa ShorevsSeestern S450 Ocean Star

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

Tsuyosa Shore
CitizenTsuyosa Shore
MSRP $495
S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299

At a glance

11 of 29 specs differ
Diameter
Tsuyosa Shore40mm
S450 Ocean Star40mm
Power Reserve
Tsuyosa Shore42h
S450 Ocean Star41h
Water Resistance
Tsuyosa Shore100m
S450 Ocean Star100m
MSRP
Tsuyosa Shore$495
S450 Ocean Star$299

Full specifications

Case

3 specs
Lug-to-Lug
46mm
48mm
Lug Width
9mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
Dial Color
Navy
White
Lume
None
Tritium

Movement

5 specs
Caliber
8210
TMI NH35A
Beat Rate
28,800 vph
21,600 vph
Power Reserve
42h
41h
Jewels
25
24
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$495
$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.

Citizen Tsuyosa Shore

The Citizen Tsuyosa Shore is widely regarded as a versatile sports-casual watch with a sunray-brushed dial, luminous hands and markers, and a 100-meter water resistance. It features a unidirectional rotating bezel with a 60-minute aluminum insert and a President-style bracelet noted for its comfort and mix of finishes. The watch is powered by the in-house automatic Calibre 8210 movement. While it offers 100m WR and a rotating bezel, it is not considered a true diver's watch as it does not meet ISO certification or tool-watch standards. On balance, owners and reviewers appreciate the Citizen Tsuyosa Shore for its accessible pricing and everyday wearability as a lifestyle-oriented timepiece.

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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