Side by side

Lorier Neptune SIVvsUnimatic Modello Uno UT1-GMT Toolwatch GMT (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.

Lorier Neptune SIV

Owners widely praise the Lorier Neptune SIV for its versatile, vintage-inspired design featuring a glossy gilt-style dial and a comfortable, tapered bracelet, noting its affordability reduces wear anxiety. Reviewers and owners alike mention the acrylic crystal as a point of contention, with some preferring sapphire, and one owner finds the bracelet lacks the feel of more expensive options. On balance, owners and reviewers rate the Lorier Neptune SIV highly for its appealing vintage aesthetic and value proposition.

Unimatic Modello Uno UT1-GMT Toolwatch GMT (41.5mm)

Sources 2 and 5 describe a different variant (Diving Heritage GMT with automatic Seiko NH34A movement), not the UT1-GMT Toolwatch GMT with Ronda 515.24D. Source 1 describes a different watch (UT1, with Seiko SII VH31 sweeping quartz). Only Sources 3 and 4 address the correct watch. The UT1-GMT Toolwatch GMT earns solid marks as an entry-level tool watch, praised for passing U.S. MIL-STD-810 drop tests (26 drops from 1.22 meters on concrete with no damage) and delivering practical quartz reliability with its Ronda 515.24D movement. The sandblasted stainless steel case, shock-protection system, and digital GMT aperture at 12 make it a capable daily beater; one reviewer values the grab-and-go accuracy quartz offers, though the stated accuracy range of −1 to +20 seconds per month is unremarkable for the category, and solid quartz

At a glance

12 of 29 specs differ
Diameter
Neptune SIV39mm
Modello Uno UT1-GMT Toolwatch GMT (41.5mm)41.5mm
Power Reserve
Neptune SIV
Modello Uno UT1-GMT Toolwatch GMT (41.5mm)
Water Resistance
Neptune SIV200m
Modello Uno UT1-GMT Toolwatch GMT (41.5mm)300m
MSRP
Neptune SIV$599
Modello Uno UT1-GMT Toolwatch GMT (41.5mm)$760

Full specifications

Case

7 specs
Category
Diver
Diameter
39mm
41.5mm
Thickness
0mm
Lug-to-Lug
0mm
Lug Width
20mm
0mm
Material
Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Dial Color
Standard
Black

Movement

2 specs
Caliber
Ronda 515.24D (quartz GMT)
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$599
$760
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