Unimatic · Microbrand · Italy

Unimatic Modello Tre U3FB

Ref. U3FB · Limited · 2025 · Diver, Chronograph

Unimatic Modello Tre U3FB-AAG Automobili Amos
Photo: Unimatic
  • Unimatic Modello Tre U3FB-AAS Automobili Amos
  • Unimatic Modello Tre U3FB-ROPS
  • Unimatic Modello Tre U3FB-TS Todd Snyder
From $718 to $1,066
  • Seiko VK64A
  • 40 mm × 14.1 mm
  • Sapphire crystal
  • 300 m water resistance

Movement

Type
Meca-quartz
Tier
Mid
Complications
Hours, Minutes, Chronograph
Frequency
n/a
Power reserve
n/a
Hacking
n/a
Accuracy (factory)
-20 / +20 s/month

Case

Diameter
40 mm
Lug to lug
51.2 mm
Thickness
14.1 mm
Lug width
22 mm
Material
Steel (316L)
Hardening
—
Water resistance
300 m
Crown
Screw-down
Case back
Solid, screw-down
Bezel
Fixed
Finishing
Sandblasted (black DLC on U3FB-ROPS and U3FB-TS)

Crystal & dial

Crystal
Sapphire
Shape
Double-domed
Anti-reflective
Inner
Lume
Super-LumiNova (colour varies by edition)

Bracelet

Bracelet
—

Straps

Strap 1
Other, quick release, Two-piece quick-release TPU strap: verde foresta (U3FB-AAG) or dust (U3FB-AAS) with sandblasted steel hardware signed UNIMATIC, black with black DLC sandblasted hardware (U3FB-ROPS)
Strap 2
NATO, Forest Night seatbelt NATO with sandblasted black DLC hardware signed UNIMATIC (U3FB-TS)

Weight

Head only
90 g
On bracelet
—
On strap
109 g

Prices

VariantConfigurationTypePriceUSDAs ofSource
U3FB-AAG Automobili Amos—Msrp950 EUR$1,0662026-10-25link
U3FB-AAS Automobili Amos—Msrp950 EUR$1,0662026-10-25link
U3FB-ROPS—Msrp810 EUR$9092026-10-25link
U3FB-TS Todd Snyder—Msrp718 USD$7182025-03-06link

Variants

NameReferenceDialBezelConfigurationStatus
U3FB-AAG Automobili AmosU3FB-AAGverde foresta, two subdials (60-minute counter, 24-hour), GL dark orange lume, sand seconds rail, orange trims, safari orange seconds tip, no datesandblasted steel fixed bezel, deep acid-etched tachymeter scaleverde foresta quick-release TPU two-piece strapLimited (150)
U3FB-AAS Automobili AmosU3FB-AASdust, two subdials (60-minute counter, 24-hour), GL dark orange lume, sand seconds rail, orange trims, safari orange seconds tip, no datesandblasted steel fixed bezel, deep acid-etched tachymeter scaledust quick-release TPU two-piece strapLimited (150)
U3FB-ROPSU3FB-ROPSmatte black, single subdial (60-minute counter) with concentric circles, GL light old radium lume, gold metallic closed seconds rail, trims and hands, no dateblack DLC fixed bezel, no scale (photos)black quick-release TPU two-piece strap, black DLC hardwareLimited (300)
U3FB-TS Todd SnyderU3FB-TSForest Night reverse panda, two neutral stone subdials (60-minute counter, 24-hour), custom Neutral Stone lume, international orange seconds tip, no dateblack DLC fixed bezel, no scale (photos)Forest Night seatbelt NATO, black DLC hardwareLimited (100)

About this entry

87% of key specs known. Missing: hardening, bracelet offered.

The fixed-bezel Modello Tre (FB): the U3's chrono-diver layout and Seiko VK64 meca-quartz movement in a 40mm monoblock case whose bezel is part of the case, with no rotating bezel, so 40mm is the diameter. Unimatic called the first edition, the U3FB-TS of March 2025, its first fixed-bezel chronograph. Sold as numbered limited editions, each recorded as a variant. Common specification, from the U3FB-AAG and AAS sheets (2025) and the descriptions: 40mm diameter, 51.2mm lug to lug, 28.4mm case opening, 12.9mm without the crystal and 14.1mm with it, 22mm lugs, 316L steel with a sandblasted finish, 90g for the head and 109g on the TPU strap, 2mm screw-down caseback, 8mm screw-down 'Alchemical Sun' crown between two 5.5mm screw-in chronograph pushers, no crown guards (photos), individually tested to 300m, 2.5mm double-domed sapphire with anti-reflective coating on the inner side, VK64 with a 1/5-second centre chronograph hand and a 60-minute counter at 9 (two-eyed dials also show the 24-hour indicator at 3); Unimatic quotes +/-20 s/month and about 3 years of battery life, with no regulation claim. The sheets call the bezel a fixed monoblock bezel; only the Automobili Amos editions have a tachymeter etched into it, and the U3FB-ROPS and TS bezels show no scale in the photos. No edition shows or states a date window, so complications are hours, minutes and chronograph. Most descriptions and page spec lists call the steel 316 where the sheets say 316L. Edition details. U3FB-TS (2025, 100) was made with Todd Snyder: Forest Night reverse panda dial with neutral stone subdials and custom Neutral Stone lume, international orange seconds tip, sandblasted black DLC case, Unimatic x Todd Snyder caseback, Forest Night seatbelt NATO; its page links no spec sheet and shows no price, so the price is the 718 USD launch price from Highsnobiety. U3FB-AAG and U3FB-AAS (2025, 150 each) were made with Automobili Amos: verde foresta or dust dial with two subdials, GL dark orange lume, sand seconds rail and orange trims, acid-etched tachymeter on the sandblasted steel bezel, 'AA steering wheel' caseback, matching quick-release TPU strap; they were sold through Sease's website and the store shows 0, so the price is the 950 EUR final price their pages state. U3FB-ROPS (2026, 300): mono-eyed matte black dial with a concentric-circle counter, GL light old radium lume and gold metallic seconds rail, trims and hands, black DLC sandblasted case, military time conversion table caseback, black quick-release TPU strap with DLC hardware; its page links the U3FB-AAS sheet rather than its own, and the price is the Italian euro price, VAT included, its page shows.

Last verified: 2026-10-25. Edit or correct this entry.

Sources