Side by side

Seiko Prospex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited EditionvsUnimatic Modello Quattro UT4-U-TI-GMT Ultratool GMT

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.

Seiko Prospex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited Edition

Owners and reviewers widely praise the Seiko Prospex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited Edition for its attractive vintage-inspired aesthetics, functional solar dials, and wearable proportions, with some noting the chronograph pushers are a joy to operate. The domed sapphire crystal is a recurring positive, as is the overall value proposition at its price point, with specific models highlighted for their neo-vintage Daytona flair and Pogue-inspired colorways. However, several sources point to a limited bracelet clasp with only two micro-adjustments and a small, hard-to-read date window as drawbacks. Some owners also note internal reflections on the domed sapphire crystal and occasional slight misalignment of the chronograph seconds hand at zero. On balance, owners and reviewers rate the Seiko Prospex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited Edition highly for its compelling retro design and modern solar functionality at an accessible price.

Unimatic Modello Quattro UT4-U-TI-GMT Ultratool GMT

Owners widely praise the Unimatic Modello Quattro UT4-U-TI-GMT Ultratool GMT for its crisp, modernist Brutalist design and featherlight titanium case, which enhances wearability. Reviewers note that the larger dial numerals improve legibility, making it a better tool watch. However, the titanium case is susceptible to scratches, and the dial's numeral lume is less bright than the hands. The crown unscrews less smoothly than on stainless steel versions, and the dial's tighter spacing sacrifices some breathing room. On balance, owners and reviewers consider the Unimatic Modello Quattro UT4-U-TI-GMT Ultratool GMT a well-executed tool watch, with its lightweight titanium construction and improved legibility being the primary strengths.

At a glance

14 of 29 specs differ
Diameter
Prospex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited Edition39mm
Modello Quattro UT4-U-TI-GMT Ultratool GMT40mm
Power Reserve
Prospex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited Edition
Modello Quattro UT4-U-TI-GMT Ultratool GMT
Water Resistance
Prospex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited Edition100m
Modello Quattro UT4-U-TI-GMT Ultratool GMT300m
MSRP
Prospex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited Edition$700
Modello Quattro UT4-U-TI-GMT Ultratool GMT$840

Full specifications

Case

7 specs
Category
Chronograph
Diameter
39mm
40mm
Thickness
13.3mm
0mm
Lug-to-Lug
45.5mm
0mm
Lug Width
20mm
0mm
Material
Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

5 specs
Crystal
Sapphire
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Dial Color
Black
Lume
LumiBrite on hands and index(es)
None

Movement

1 specs
Caliber
V192
Ronda 515.24D (quartz GMT)

Pricing

1 specs
MSRP
$700
$840
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