Side by side

Praesidus Service WatchvsSeiko 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 Service Watch

Owners widely praise the Praesidus Service Watch for its 38mm size and solid build quality, with the domed crystal providing vintage distortion and the unbranded dial appealing to history enthusiasts. However, owners report jumpy hand sensitivity when setting the time. One owner experienced a scratchy crown and a noisy rotor on their DD-45, which persisted after warranty service and eventually led to the crown locking mid-way. Concerns about slow customer service and a negative reputation for Praesidus's support are also noted by owners. On balance, owners appreciate the vintage aesthetic and wearability of the Praesidus Service Watch, though persistent customer service issues temper enthusiasm.

From video reviewers

The 38mm case size is a strength for those preferring smaller watches. The dial may show slight discoloration or unevenness in finish.

Seiko Prospex Sea Save the Ocean Special Edition

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its visually striking and unique dial designs, often described as a standout feature offering significant aesthetic appeal for the price. Owners and reviewers consistently highlight the attractive blue gradients, wave patterns, and textured finishes that evoke ocean depths. The watch is generally considered comfortable to wear, with a well-proportioned case size and good build quality. Accuracy is reported as around +5 seconds per day by one owner. However, several sources point to the bracelet and clasp as a weak point, with criticisms including pin-and-collar construction, stamped clasps, and a lack of a convenient diver's extension. Some reviewers also note potential issues with bezel alignment and day/date wheel alignment. On balance, owners and reviewers rate the Seiko Prospex Sea Save the Ocean Special Edition highly for its exceptional dial design and overall value.

At a glance

13 of 29 specs differ
Diameter
Service Watch42mm
Prospex Sea Save the Ocean Special Edition42.4mm
Power Reserve
Service Watch
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Service Watch100m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Service Watch$259
Prospex Sea Save the Ocean Special Edition$550

Full specifications

Case

6 specs
Category
Field
Diver
Diameter
42mm
42.4mm
Thickness
13.4mm
Lug-to-Lug
49.4mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Green
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
$259
$550
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