Side by side

Seestern S450 Ocean StarvsGrand Seiko SBGH281

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

S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299
SBGH281
Grand SeikoSBGH281
MSRP $6,300

At a glance

14 of 29 specs differ
Diameter
S450 Ocean Star40mm
SBGH28140mm
Power Reserve
S450 Ocean Star41h
SBGH28155h
Water Resistance
S450 Ocean Star100m
SBGH281100m
MSRP
S450 Ocean Star$299
SBGH281$6,300

Full specifications

Case

5 specs
Category
Diver
Dress
Thickness
12mm
13.3mm
Lug-to-Lug
48mm
46.2mm
Lug Width
20mm
19mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
White
Black
Lume
Tritium
None

Movement

5 specs
Caliber
TMI NH35A
9S85
Beat Rate
21,600 vph
28,800 vph
Power Reserve
41h
55h
Jewels
24
25
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$299
$6,300

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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.

Grand Seiko SBGH281

The Grand Seiko SBGH281 is lauded for its 44GS-style case, which exemplifies the brand's "Grammar of Design" with its sharp facets and broad case band, and its Hi-Beat 36000vph Caliber 9S85 movement, noted for an ultra-smooth second hand. Reviewers highlight the exceptional finishing, including Zaratsu polishing and hand-polished markers, as offering significant value at its €6,200 price point. The watch features an accuracy rating of +5/–3 seconds per day, a 55-hour power reserve, and 100-meter water resistance, all executed to Grand Seiko's high standards, and is limited to 1,500 pieces. Overall, reviewers rate the Grand Seiko SBGH281 highly for its iconic case design and superb finishing at its price.

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