Side by side

Praesidus A-11 Type 44vsSeestern S450 Ocean Star

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

A-11 Type 44
PraesidusA-11 Type 44
MSRP $555
S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299

At a glance

13 of 29 specs differ
Diameter
A-11 Type 4438mm
S450 Ocean Star40mm
Power Reserve
A-11 Type 4440h
S450 Ocean Star41h
Water Resistance
A-11 Type 44100m
S450 Ocean Star100m
MSRP
A-11 Type 44$555
S450 Ocean Star$299

Full specifications

Case

5 specs
Category
Pilot
Diver
Diameter
38mm
40mm
Thickness
11mm
12mm
Lug-to-Lug
46mm
48mm
Lug Width
18mm
20mm

Crystal & Dial

2 specs
Dial Color
Patina
White
Lume
None
Tritium

Movement

5 specs
Caliber
Landeron L21
TMI NH35A
Beat Rate
28,800 vph
21,600 vph
Power Reserve
40h
41h
Jewels
25
24
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$555
$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.

Praesidus A-11 Type 44

The Praesidus A-11 Type 44 is lauded for its faithful vintage aesthetic, featuring a domed acrylic crystal and coin-edge bezel, with its 38mm size offering a comfortable modern wear. It includes 100 meters of water resistance and a Swiss Soprod P024 movement with hacking and manual winding, assembled in the U.S. Some find the 32mm variant overpriced for its Landeron 21 movement, and the drilled lugs appear too close to the lug edge, though it keeps excellent time, gaining about 6 seconds per day, and feels substantial for its size despite a 13mm thickness. On balance, owners and reviewers appreciate the Praesidus A-11 Type 44 for its authentic vintage design and comfortable wearability at its price point.

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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