Side by side

Formex Stratos UTCvsZelos Skyraider 40 Skeleton

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

Stratos UTC
FormexStratos UTC
MSRP $4,663
Skyraider 40 Skeleton
ZelosSkyraider 40 Skeleton
MSRP $1,999

At a glance

12 of 29 specs differ
Diameter
Stratos UTC41mm
Skyraider 40 Skeleton40mm
Power Reserve
Stratos UTC42h
Skyraider 40 Skeleton40h
Water Resistance
Stratos UTC100m
Skyraider 40 Skeleton50m
MSRP
Stratos UTC$4,663
Skyraider 40 Skeleton$1,999

Full specifications

Case

6 specs
Category
GMT
Skeleton
Diameter
41mm
40mm
Thickness
11.8mm
8.2mm
Lug-to-Lug
47mm
40mm
Material
Stainless Steel
Titanium
Water Resistance
100m
50m

Crystal & Dial

2 specs
Dial Color
Blue
Ti Damascus LE
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
ETA 2892
Swiss Skeletonised Marvin 700
Type
Automatic
Manual
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$4,663
$1,999

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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.

Formex Stratos UTC

Owners and reviewers widely praise the Formex Stratos UTC for its user-friendly flyer GMT complication, which utilizes pushers for time-zone adjustments, and its slim 11.8mm case. The watch is noted for its intricate, hand-finished case with a multi-layer construction and excellent finishing, along with a unique two-level case design. The Dubois-Depraz module on an ETA 2892 movement is a highlight, with accuracy figures ranging from +/- 5 to +/- 7 seconds per day. However, some find the dial busy with multiple typefaces and the overall design too complex or "plug ugly," with the price near €4000 considered high by some for a newer brand. Overall, owners and reviewers rate the Formex Stratos UTC highly for its innovative GMT functionality and excellent case finishing at its price point.

Zelos Skyraider 40 Skeleton

The Zelos Skyraider 40 Skeleton is noted for its skeletonized dial and the use of BGW9 and C3 Super-LumiNova for legibility. It is powered by a manual-wind ETA 6498 movement, offering a 44-hour power reserve. On balance, the Zelos Skyraider 40 Skeleton is seen as a cool-looking option, though availability is a factor.

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