Side by side

Studio Underd0g Desert Sky (Gen3)vsTornek-Rayville TR-660 Acrylic Non-date

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

The bottom line

The 38.5mm Desert Sky (Gen3) wears 1.5mm narrower than the 40mm TR-660 Acrylic Non-date.

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 Desert Sky (Gen3)

Owners widely praise the Studio Underd0g Desert Sky (Gen3) for its vibrant blue dial that exhibits depth and liveliness under varying light, its fun and creative design, and its value as a mechanical chronograph. The Seagull 1901 movement provides column-wheel chronograph functionality, with one owner reporting accuracy around +6 seconds per day and satisfying chronograph pusher feel. However, the watch is criticized for a highly reflective, overly domed crystal and weak lume. Some owners find the 13.6mm thickness to be substantial. On balance, owners rate the Studio Underd0g Desert Sky (Gen3) highly for its engaging dial and value proposition as a mechanical chronograph.

Tornek-Rayville TR-660 Acrylic Non-date

The Tornek-Rayville TR-660 Acrylic Non-date is a 40mm bead-blasted stainless steel watch with a utilitarian matte black dial and a moisture detector, measuring 14.7mm thick and 48.5mm lug-to-lug, featuring a subtly domed, AR-coated crystal. One owner notes a preference for a different watch's bezel-locking mechanism but appreciates the TR-660's 20mm lug size. Another owner reports damage to the case and bezel, though it includes unused and worn straps. On balance, owners find the Tornek-Rayville TR-660 Acrylic Non-date to have a timeless design that remains appealing.

Where to get them

Check prices & track

Studio Underd0g Desert Sky (Gen3)
Studio Underd0g Desert Sky (Gen3)
MSRP $550
Tornek-Rayville TR-660 Acrylic Non-date
Tornek-Rayville TR-660 Acrylic Non-date
Desert Sky (Gen3)
Studio Underd0gDesert Sky (Gen3)
MSRP $550
TR-660 Acrylic Non-date
Tornek-RayvilleTR-660 Acrylic Non-date

At a glance

12 of 29 specs differ
Diameter
Desert Sky (Gen3)38.5mm
TR-660 Acrylic Non-date40mm
Power Reserve
Desert Sky (Gen3)40h
TR-660 Acrylic Non-date50h
Water Resistance
Desert Sky (Gen3)
TR-660 Acrylic Non-date200m
MSRP
Desert Sky (Gen3)$550
TR-660 Acrylic Non-date

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
38.5mm
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
$550

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