Unimatic Modello Quattro U4S-8BBvsYema Navygraf Heritage

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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.

Unimatic Modello Quattro U4S-8BB at true scale

Modello Quattro U4S-8BB

Yema Navygraf Heritage at true scale

Navygraf Heritage

Diameter

40mm

39mm

Lug-to-Lug

n/a

46mm

Thickness

n/a

10.8mm

Water Resistance

300m

highest

100m

MSRP

$1,110

$990

lowest

Movement

Sellita SW200-1

Sellita SW200-1

Case

6 specs
Diameter
40mm
39mm
Thickness
n/a
10.85mm
Lug-to-Lug
n/a
46mm
Lug Width
22mm
19mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
n/a
Black

Movement

1 specs
Type
Meca-Quartz
Automatic

Pricing

1 specs
MSRP
$1,110
$990
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Reviews

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

Unimatic Modello Quattro U4S-8BB

The Unimatic Modello Uno U1-MY2 is widely praised for its minimalistic, utilitarian design and clever case details, with owners finding its style a primary draw and its price point remarkable for the quality. Reviewers highlight the hypnotic light play on the matte black dial, enhanced by the sapphire crystal's anti-reflective coating, and the Seiko NH35 movement is noted as simple, reliable, and keeping good time. One owner found the clasp sharp, a concern raised with the brand. Some community members criticize Unimatic's pricing, suggesting high margins due to the use of the Seiko NH35 movement. Overall, owners and reviewers rate the Unimatic Modello Uno U1-MY2 highly for its distinctive design and impressive case finishing at its price point.

Yema Navygraf Heritage

Owners widely praise the Yema Navygraf Heritage for its comfortable 39mm wearability and faithful reissue of a 1970s model, with craftsmanship often noted as better than expected. Some owners highlight its retro look, yellow hands for legibility, and unique case design. However, multiple owners report quality control issues, including bezel free play, misalignment, and crown seating problems. Accuracy figures vary, with one owner noting it runs at +10 to +15 seconds per day, while another regulated theirs after losing 30 seconds per day, though another owner states theirs is accurate. The bezel is described as super tight to turn by one owner, despite having precise 120 clicks. Overall, owners find the Yema Navygraf Heritage a good-looking and quirky watch with notable value for its design and build.

From video reviewers

The 39mm case size and comfortable wearability are consistently praised. The in-house MBP1000 movement is mentioned as a strength by multiple reviewers. Reviewers disagree on the movement's quality, with one suggesting it should not have passed quality control while others highlight it as a positive feature.

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