Side by side

Seiko Prospex SPEEDTIMER Seiko 145th Anniversary Limited EditionvsFormex Stratos UTC

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

Stratos UTC
FormexStratos UTC
MSRP $4,663

At a glance

12 of 29 specs differ
Diameter
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition42mm
Stratos UTC41mm
Power Reserve
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition45h
Stratos UTC42h
Water Resistance
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition100m
Stratos UTC100m
MSRP
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition$2,500
Stratos UTC$4,663

Full specifications

Case

4 specs
Category
Chronograph
GMT
Diameter
42mm
41mm
Thickness
14.6mm
11.8mm
Lug-to-Lug
49.5mm
47mm

Crystal & Dial

4 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Blue
Lume
LumiBrite on hands and index(es)
Super-LumiNova

Movement

3 specs
Caliber
8R48
ETA 2892
Power Reserve
45h
42h
Jewels
34
25

Pricing

1 specs
MSRP
$2,500
$4,663

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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 Seiko 145th Anniversary Limited Edition

Owners widely praise the Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition for its refined presence and intricate dial patterns, with some favoring its unique red dial and steel bezel over other Speedtimer models. However, some owners criticize the 24-hour subdial as useless, the date window as recessed, and the stock bracelet as difficult to fit, while others find the pushers stick out too much. One owner notes the $995 price point is high for the 6R55 movement, suggesting a lower range, though others appreciate the Seiko finishing and charm. On balance, owners rate the Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition well for its unique aesthetic and finishing, despite some functional and value concerns.

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.

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