Side by side

Praesidus Vince Speranza A-11vsSeestern S450 Ocean Star

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

Vince Speranza A-11
PraesidusVince Speranza A-11
MSRP $359
S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299

At a glance

14 of 29 specs differ
Diameter
Vince Speranza A-1142mm
S450 Ocean Star40mm
Power Reserve
Vince Speranza A-1140h
S450 Ocean Star41h
Water Resistance
Vince Speranza A-11100m
S450 Ocean Star100m
MSRP
Vince Speranza A-11$359
S450 Ocean Star$299

Full specifications

Case

5 specs
Category
Field
Diver
Diameter
42mm
40mm
Thickness
12mm
Lug-to-Lug
49mm
48mm
Lug Width
22mm
20mm

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
NH35
White
Lume
None
Tritium

Movement

5 specs
Caliber
Seiko NH35
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
$359
$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 Vince Speranza A-11

Owners widely praise the Praesidus Vince Speranza A-11 for its vintage aesthetic, readable dial, and distinctive top-hat crystal. However, community members report mixed accuracy, with one owner experiencing a gain of 24 seconds per day and another noting the lume on the hands is disappointing. One owner experienced a broken crystal after a drop, though it was replaced by the brand. On balance, owners appreciate the Praesidus Vince Speranza A-11 for its vintage charm and unique crystal, despite some reservations about lume and timekeeping consistency.

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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