Side by side

Seiko Prospex SPEEDTIMER MechanicalvsStudio Underd0g Project Passion Crew

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

Prospex SPEEDTIMER Mechanical
SeikoProspex SPEEDTIMER Mechanical
MSRP $995
Project Passion Crew
Studio Underd0gProject Passion Crew
MSRP $840

At a glance

12 of 29 specs differ
Diameter
Prospex SPEEDTIMER Mechanical39.5mm
Project Passion Crew39.5mm
Power Reserve
Prospex SPEEDTIMER Mechanical72h
Project Passion Crew40h
Water Resistance
Prospex SPEEDTIMER Mechanical200m
Project Passion Crew
MSRP
Prospex SPEEDTIMER Mechanical$995
Project Passion Crew$840

Full specifications

Case

4 specs
Thickness
12mm
Lug-to-Lug
44.5mm
Lug Width
20mm
Water Resistance
200m

Crystal & Dial

4 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Standard
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
6R55
Power Reserve
72h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$995
$840

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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.

Seiko Prospex SPEEDTIMER Mechanical

The Seiko Prospex SPEEDTIMER Mechanical is praised for its visually appealing design and comfortable wearability, with owners frequently using its chronograph function for daily tasks. Reviewers note its clean dial layout and LumiBrite treated hands and markers, and one source highlights the 72-hour power reserve of the 6R55 movement. However, some owners criticize its chronograph functionality and the 24-hour subdial. On balance, owners and reviewers rate the Seiko Prospex SPEEDTIMER Mechanical highly for its daily usability and refined aesthetics.

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.

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