Side by side

Lorier Hydra SIIIvsUnimatic Modello Quattro UC4 Classic Time Only

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 Hydra SIII

Owners and reviewers praise the Lorier Hydra SIII for its value, GMT functionality via the Miyota 9075 movement, and classic travel-diver aesthetics. Some reviewers note the finishing is simple or a tad rough around the edges, while others find it good for the price. Accuracy figures range from +7 to +8.5 seconds per day. The domed Hesalite crystal may exhibit distortion. Overall, owners and reviewers rate the Lorier Hydra SIII highly for its feature set and value proposition in a travel-diver format.

From video reviewers

The watch is praised for its vintage-inspired design and competitive pricing. Reviewers noted the attractive dial and hands. No shared weakness was identified.

Unimatic Modello Quattro UC4 Classic Time Only

The Unimatic Modello Quattro UC4 Classic Time Only features a robust 40mm black DLC case, 13.7mm to 13.9mm thick, with drilled lugs and a fixed steel bezel that balances beefiness with wearability. Reviewers note improved crown action and refinement over earlier models, with a flat sapphire crystal. Its sandwich dial reveals Super-LumiNova BG W9 beneath cut-out indexes, paired with a Seiko NH35A automatic movement. While the movement is considered robust and reliable, one reviewer expressed a preference for a Sellita caliber given the watch's heft. On balance, reviewers find the Unimatic Modello Quattro UC4 Classic Time Only to be a well-refined and wearable tool watch with a distinct military character.

At a glance

11 of 29 specs differ
Diameter
Hydra SIII39mm
Modello Quattro UC4 Classic Time Only40mm
Power Reserve
Hydra SIII
Modello Quattro UC4 Classic Time Only
Water Resistance
Hydra SIII200m
Modello Quattro UC4 Classic Time Only300m
MSRP
Hydra SIII$699
Modello Quattro UC4 Classic Time Only$655

Full specifications

Case

7 specs
Category
Diver
Diameter
39mm
40mm
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
Blue
Matte black

Movement

1 specs
Caliber
Seiko NH35A (automatic)

Pricing

1 specs
MSRP
$699
$655
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