IXDAO 5305 Retro Professional DivervsUnimatic Modello Uno U1S-GMT-M

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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

5305 Retro Professional Diver

Modello Uno U1S-GMT-M
Diameter
39mm
40mm
Lug-to-Lug
48mm
n/a
Thickness
12.2mm
n/a
Water Resistance
200m
300m
highest
MSRP
$218
lowest
$2,190
Movement
PT5000
Sellita SW330-2
Case
4 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely report the IXDAO 5305 Retro Professional Dive Watch offers excellent lume and wears exceptionally well, with one owner noting accuracy at -1 second per day. Some users flag potential inconsistencies in finishing compared to established brands, and one owner mentions sharp edges on the bottom mid-case and lugs. The stock bracelet is considered very heavy, though an aftermarket bracelet can improve wearability. The IXDAO 5305 Retro Professional Dive Watch is seen as decent for its price, with some noting good specifications. Overall, owners rate the IXDAO 5305 Retro Professional Dive Watch highly for its wearability and lume at the price.
Owners widely praise the Unimatic Modello Uno U1S-GMT-M's case finishing, with one owner noting the brushed finish works well and is a cost-saving measure. The thinner case, enabled by the Sellita SW330-2 movement, is a key purchase factor for some. Reviewers note the matte black dial with a hollowed-out GMT hand and an updated TPU rubber strap. The 40mm case has 300m water resistance and a 120-click unidirectional bezel. One owner reports the lume is useless at night. On balance, owners and reviewers rate the Unimatic Modello Uno U1S-GMT-M highly for its case finishing and appealing design at its price point.
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