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Praesidus Vince Speranza A-11vsSeiko Prospex Sea Save the Ocean Special Edition

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

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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.

Seiko Prospex Sea Save the Ocean Special Edition

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its attractive, unique, and textured dials, often described as having a "Grand Seiko feel" at a more accessible price point, with specific mentions of wave patterns, lagoon hues, and manta ray motifs. Owners appreciate the smooth bezel operation and satisfactory lume. Accuracy figures vary, with one owner reporting +5 seconds per day, while another notes a range from +1/+2 to about -6 seconds per day. The 6R35 movement offers a 70-hour power reserve, and some models feature sapphire crystals. Criticisms include a desire for exhibition casebacks and concerns about the quality and security of the stamped metal clasps and bracelets, which are frequently described as rattly or underwhelming, though this is noted as a common Seiko trait. Some owners are split on the number of Save the Ocean variations and dislike the cyclops magnifier.

At a glance

14 of 29 specs differ
Diameter
Vince Speranza A-1142mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
Vince Speranza A-11
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Vince Speranza A-11100m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Vince Speranza A-11$359
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

6 specs
Category
Field
Diver
Diameter
42mm
45mm
Thickness
13.2mm
Lug-to-Lug
49mm
47.7mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

4 specs
Crystal
Domed Sapphire
Sapphire
AR Coating
Anti-reflective coating on inner surface
Dial Color
NH35
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Seiko NH35
Seiko 4R36
Power Reserve
0h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$359
$625
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