Side by side

Orient KamasuvsUnimatic Modello Quattro UC4 Classic Time Only

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

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What people say

Owners + reviewers, side by side

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

Orient Kamasu

Owners widely praise the Orient Kamasu for its excellent value, robust build quality suitable for daily wear, and attractive design featuring applied indices and a sunburst dial. Reviewers and owners consistently highlight its strong lume, hacking and hand-winding movement, sapphire crystal, and sub-42mm dimensions. Some owners note a rattle, a crown that can be hard to grip, and a bezel with noticeable play or a tendency to become sticky. The bracelet is frequently criticized for its hollow end links and pressed clasp, though opinions on its taper vary. Accuracy figures reported by owners range from approximately +15 seconds per day to more precise timekeeping. Overall, owners rate the Orient Kamasu highly for its impressive finishing and features at its price point.

From video reviewers

The Orient Kamasu's compact package makes it suitable for smaller wrists without compromising wrist presence. A notable weakness is that the bracelet is decent but may have some issues, although the reviewer does not elaborate. Reviewers disagree on the value for money, with one highlighting the affordable price and in-house movement, while the other implies a trade-off in value.

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

17 of 29 specs differ
Diameter
Kamasu41.8mm
Modello Quattro UC4 Classic Time Only40mm
Power Reserve
Kamasu40h
Modello Quattro UC4 Classic Time Only
Water Resistance
Kamasu200m
Modello Quattro UC4 Classic Time Only300m
MSRP
Kamasu$375
Modello Quattro UC4 Classic Time Only$655

Full specifications

Case

7 specs
Category
Diver
Diameter
41.8mm
40mm
Thickness
12.8mm
0mm
Lug-to-Lug
47mm
0mm
Lug Width
22mm
0mm
Material
Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Dial Color
Black
Matte black

Movement

7 specs
Caliber
Orient F6922
Seiko NH35
Beat Rate
21,600 vph
0 vph
Power Reserve
40h
0h
Jewels
22
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
Day-date
None

Pricing

1 specs
MSRP
$375
$655
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