Side by side

Oris Big Crown Pointer Date Calibre 403vsSeestern S450 Ocean Star

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

Big Crown Pointer Date Calibre 403
OrisBig Crown Pointer Date Calibre 403
MSRP $4,500
S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299

At a glance

18 of 29 specs differ
Diameter
Big Crown Pointer Date Calibre 40340mm
S450 Ocean Star40mm
Power Reserve
Big Crown Pointer Date Calibre 403120 hoursh
S450 Ocean Star41h
Water Resistance
Big Crown Pointer Date Calibre 40350m
S450 Ocean Star100m
MSRP
Big Crown Pointer Date Calibre 403$4,500
S450 Ocean Star$299

Full specifications

Case

7 specs
Category
Diver
Thickness
12mm
Lug-to-Lug
48mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
50m
100m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Red
White
Indices
Applied
Lume
None
Tritium

Movement

5 specs
Caliber
CALIBRE 403
TMI NH35A
Beat Rate
4 vph
21,600 vph
Power Reserve
120 hoursh
41h
Jewels
21
24
Complications
Date
GMT, Date

Pricing

1 specs
MSRP
$4,500
$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.

Oris Big Crown Pointer Date Calibre 403

The Oris Big Crown Pointer Date Calibre 403 is praised for its 120-hour power reserve and anti-magnetic properties, with reviewers noting its simplified design and vibrant blue dial. Owners highlight the smooth winding feel of the in-house Calibre 403 movement, which features twin barrels. However, some owners report minor time-setting issues, and the 50-meter water resistance is considered underwhelming by one reviewer, who also notes the deer leather strap's clasp scratches easily. On balance, owners and reviewers rate the Oris Big Crown Pointer Date Calibre 403 highly for its impressive power reserve and value proposition.

From video reviewers

The 5-day power reserve of the new in-house Calibre 403 movement is a key strength. Reviewers noted the comfortable H-link bracelet and vibrant dial color options.

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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