Side by side

Timefactors Speedbird GMTvsUnimatic Modello Uno UT1 Toolwatch Diver (41.5mm)

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

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Timefactors Speedbird GMT

Owners widely praise the Timefactors Speedbird GMT for its quality and value, with many appreciating its 36mm case size for wearability and its surprisingly good bracelet. Some owners note the GMT function is on an inner ring, and one owner found the date wheel sunken. The watch is noted for its classic aesthetic and is considered a good value, though purchasing requires patience due to limited order windows. Overall, owners rate the Timefactors Speedbird GMT highly for its wearability and value at the price point.

Unimatic Modello Uno UT1 Toolwatch Diver (41.5mm)

Owners and reviewers praise the Unimatic Modello Uno UT1 Toolwatch Diver (41.5mm) for its personality-driven tool-watch dial, featuring Arabic numerals and minimal lume, and its grippy bezel and crown that are a joy to interact with. The sandblasted steel case is noted for its durability and refinement, with one source stating the 41.5mm case wears larger due to 22mm straps. The Seiko VH31 mechaquartz movement provides a sweeping second hand and accuracy of ±10–15 seconds per month, offering up to three years of battery life. The ice-blue dial's minimal contrast with luminous indexes is an aesthetic choice rather than a practical issue. On balance, owners and reviewers highly regard the Unimatic Modello Uno UT1 Toolwatch Diver (41.5mm) for its excellent value and worry-free summer diver functionality.

At a glance

11 of 29 specs differ
Diameter
Speedbird GMT36mm
Modello Uno UT1 Toolwatch Diver (41.5mm)41.5mm
Power Reserve
Speedbird GMT
Modello Uno UT1 Toolwatch Diver (41.5mm)
Water Resistance
Speedbird GMT100m
Modello Uno UT1 Toolwatch Diver (41.5mm)300m
MSRP
Speedbird GMT$315
Modello Uno UT1 Toolwatch Diver (41.5mm)$620

Full specifications

Case

6 specs
Diameter
36mm
41.5mm
Thickness
11.6mm
0mm
Lug-to-Lug
42.5mm
0mm
Lug Width
18mm
0mm
Material
Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Lume
Super Luminova X1 C3
None

Movement

2 specs
Caliber
Ronda 515
Seiko VH31 (quartz)
Power Reserve
0h

Pricing

1 specs
MSRP
$315
$620
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when Timefactors Speedbird GMT vs Unimatic Modello Uno UT1 Toolwatch Diver (41.5mm) gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.