Side by side

Studio Underd0g Project Passion CrewvsTornek-Rayville TR-660 Sapphire Non-date

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

Project Passion Crew
Studio Underd0gProject Passion Crew
MSRP $840
TR-660 Sapphire Non-date
Tornek-RayvilleTR-660 Sapphire Non-date

At a glance

12 of 29 specs differ
Diameter
Project Passion Crew39.5mm
TR-660 Sapphire Non-date40mm
Power Reserve
Project Passion Crew40h
TR-660 Sapphire Non-date50h
Water Resistance
Project Passion Crew
TR-660 Sapphire Non-date200m
MSRP
Project Passion Crew$840
TR-660 Sapphire Non-date

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
39.5mm
40mm
Thickness
14.7mm
Lug-to-Lug
48.5mm
Lug Width
20mm
Water Resistance
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Standard
Black
Lume
None
Superluminova

Movement

2 specs
Caliber
TMI NH38
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$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.

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.

Tornek-Rayville TR-660 Sapphire Non-date

Owners widely praise the Tornek-Rayville TR-660 for its quality, good timekeeping, and suitability as a military diver reissue. The 40mm bead-blasted 316L stainless steel case, sapphire bezel inlay, and Arclite Super LumiNova are noted features, powered by a Japanese TMI NH38 automatic movement and water-resistant to 20 ATMs. Some owners suggest alternatives due to availability issues with the small-batch releases. Overall, owners rate the Tornek-Rayville TR-660 highly for its faithful reissue design and quality build at its price point.

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