Side by side

Pinion Pure SteelvsSeestern S450 Ocean Star

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

Pure Steel
PinionPure Steel
MSRP $1,715
S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Pinion Pure Steel

Owners widely praise the Pinion Pure Steel's balanced 38mm case size and 44mm lug-to-lug, fitting most wrists well. The dial is described as clear and essential, though reviewers note the lack of a minute track makes precise minute setting difficult. Accuracy is regulated in-house to +/- 5 to +/- 15 seconds per day. Some commenters found the white straps on featured watches to look "horrible." Overall, owners and reviewers appreciate the Pinion Pure Steel for its well-proportioned case and essential dial design.

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.

At a glance

16 of 29 specs differ
Diameter
Pure Steel38mm
S450 Ocean Star40mm
Power Reserve
Pure Steel45h
S450 Ocean Star41h
Water Resistance
Pure Steel100m
S450 Ocean Star100m
MSRP
Pure Steel$1,715
S450 Ocean Star$299

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
38mm
40mm
Thickness
11mm
12mm
Lug-to-Lug
44mm
48mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Black
White
Lume
Super-LumiNova
Tritium

Movement

6 specs
Caliber
Sellita SW261-1
TMI NH35A
Type
Manual
Automatic
Beat Rate
28,800 vph
21,600 vph
Power Reserve
45h
41h
Jewels
25
24
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$1,715
$299
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