Side by side

Seiko Prospex SeavsStudio Underd0g Project Passion Crew

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

Prospex Sea
SeikoProspex Sea
MSRP $595
Project Passion Crew
Studio Underd0gProject Passion Crew
MSRP $840
What people say

Owners + reviewers, side by side

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

Seiko Prospex Sea

Owners and reviewers widely praise the Seiko Prospex Sea for its excellent value, robust build, and superior lume, with many noting its comfortable wearability and faithful design recreations. Some owners report the watch can feel big, thick, and heavy on smaller wrists, while others find the sizing perfect. The bezel action is frequently highlighted as smooth and precise, often exceeding that of less expensive models. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its impressive finishing and value proposition.

Studio Underd0g Project Passion Crew

The Studio Underd0g Project Passion Crew is noted for its unique "coarse dégradé amber and royal purple" multi-layer dial and manual-wind Sellita SW510 M chronograph movement with a 63-hour power reserve. However, its accessibility is severely limited as it is only sold as a $64,900 set with another watch. Overall, reviewers highlight the distinctive dial and chronograph movement as key features, though the high price and bundled sale significantly restrict its availability.

At a glance

13 of 29 specs differ
Diameter
Prospex Sea41.7mm
Project Passion Crew39.5mm
Power Reserve
Prospex Sea41h
Project Passion Crew40h
Water Resistance
Prospex Sea200m
Project Passion Crew
MSRP
Prospex Sea$595
Project Passion Crew$840

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
41.7mm
39.5mm
Thickness
12.3mm
Lug-to-Lug
49.5mm
Lug Width
20mm
Water Resistance
200m

Crystal & Dial

3 specs
Crystal
Hardlex
Sapphire
Dial Color
Black
Standard
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
4R35
Power Reserve
41h
40h
Jewels
23
25

Pricing

1 specs
MSRP
$595
$840
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