lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Diver under $2,000·Dress under $5,000·Chronograph under $5,000·Best sport watches·GMT under $5,000·Field under $500·Pilot under $2,000·Casual under $1,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Wrist-fit calculator·Selling calculator·What should I buy?·Market index·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Get the app
Download on theApp StoreGET IT ONGoogle Play
TermsPrivacyDelete accountCopyrightDisclosuresContactContribute

Independent reference site · not affiliated with any brand · contains affiliate links

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Loading watch
Home/Browse/Unimatic/Modello Quattro UT4-B
SpecStudio
Unimatic Modello Quattro UT4-B
Click to inspect
Unimatic · Modello Quattro UT4-B

Unimatic Modello Quattro UT4-B

$570Sold out

Case

Diameter
40mm
Thickness
12.05mm
Lug width
22mm
Material
Stainless Steel
Water resistance
300m

Crystal & dial

Crystal
Sapphire

Movement

Caliber
Seiko VH31
Type
Quartz

Seiko

A Seiko (TMI) quartz caliber with a high-frequency stepping motor that drives a smooth four-beats-per-second sweeping seconds hand instead of a single tick. Battery-powered and accurate to about ±20 seconds per month, it gives quartz watches a mechanical-style sweep at low cost.

Alternatives

01The market

Market prices.

Retail$570

No forum listings recorded for this watch yet.

02The connection engine

More like this.

Charlie Paris Watches CONCORDIA - Quartz Diver (38mm)

Charlie Paris Watches

CONCORDIA - Quartz Diver (38mm)

38mm · Quartz$525

Unimatic Modello Quattro UT4 Toolwatch Time Only (40mm)

Unimatic

Modello Quattro UT4 Toolwatch Time Only (40mm)

40mm · Quartz$515

Unimatic Modello Quattro UT4-AA

Unimatic

Modello Quattro UT4-AA

40mm · Quartz$610

Unimatic Modello Quattro UT4-AA3

Unimatic

Modello Quattro UT4-AA3

40mm · Quartz$970

AV86 1956 Marine

AV86

1956 Marine

41mm · Quartz$499

Elliot Brown BEACHMASTER

Elliot Brown

BEACHMASTER

40mm · Quartz$855

View all alternatives

03The community take

Owners talk.

“
In a nutshell

The Unimatic Modello Quattro UT4-B is a quartz watch, with a 40mm stainless steel case, 12.05mm thick, powered by the Seiko VH31 movement. Water resistance is rated to 300m, under a sapphire crystal. Manufacturer MSRP is $570.

Open the discussion

On real wrists

No shots yet. Show how it wears.

04The paper trail

Ask the communityStart a discussion about the Modello Quattro UT4-B: get takes from other collectors.Ask →

05The discussion

Talk about the Unimatic Modello Quattro UT4-B.