Unimatic · Microbrand · Italy

Unimatic Modello Tre U3S Titanium

Ref. U3S-T · Limited · 2026 · Diver, Chronograph

Unimatic Modello Tre U3S-T-AA Automobili Amos
Photo: Unimatic
From $5,062
  • Sellita SW510
  • 41.5 mm × 16.4 mm
  • Sapphire crystal
  • 300 m water resistance

Movement

Type
Automatic
Tier
Upper
Complications
Hours, Minutes, Small seconds, Chronograph
Frequency
28,800 bph
Power reserve
62 h
Hacking
Yes
Accuracy (factory)
—

Case

Diameter
41.5 mm
Lug to lug
51.2 mm
Thickness
16.4 mm
Lug width
22 mm
Material
Titanium (Grade 2)
Hardening
—
Water resistance
300 m
Crown
Screw-down
Case back
Display
Bezel
Unidirectional, 120 clicks, tachymeter, other insert
Finishing
Sandblasted

Crystal & dial

Crystal
Sapphire
Shape
Double-domed
Anti-reflective
Inner
Lume
Super-LumiNova GL dark orange

Bracelet

Bracelet
—

Straps

Strap 1
Other, quick release, Safari orange two-piece TPU strap with sandblasted titanium hardware signed UNIMATIC
Strap 2
Other, Solaro fabric two-piece strap with leather lining and avana brown Essex leather keepers, the extra strap

Weight

Head only
77 g
On bracelet
—
On strap
91 g

Prices

VariantConfigurationTypePriceUSDAs ofSource
U3S-T-AA Automobili Amos—Msrp4,510 EURincl. VAT$5,0622026-10-25link

Variants

NameReferenceDialBezelConfigurationStatus
U3S-T-AA Automobili AmosU3S-T-AAtitanium grey, two subdials (small seconds, 30-minute counter), GL dark orange lume, warm grey seconds rail and trims, titanium grey skeleton hands, safari orange seconds tip, no dategrade 2 titanium insert, deep acid-etched tachymetersafari orange quick-release TPU two-piece strap + Solaro fabric two-piece strapLimited (30)

About this entry

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

The Modello Tre U3S automatic chronograph (Sellita SW510 BH b) in sandblasted grade 2 titanium, which Unimatic calls the first titanium Modello Tre and 40% lighter than its steel models. One edition so far, the U3S-T-AA of March 2026, made with Automobili Amos for the Italian brand Sease's Safari Rally kit and limited to 30 pieces, recorded as a variant. Specification from its sheet, page and Unimatic's launch article: 40mm case, 41.5mm across the bezel (recorded as the diameter), 51.2mm lug to lug, 28.4mm case opening, 15.2mm without the crystal and 16.4mm with it, 22mm lugs, 77g for the head and 91g on the strap, sapphire exhibition caseback with a rotor engraved UNIMATIC, 8mm screw-down 'Alchemical Sun' crown between two oversized screw-down chronograph pushers, no crown guards (photos), individually tested to 300m, 120-click unidirectional bezel with a grade 2 titanium insert and deep acid-etched tachymeter, 2.5mm double-domed sapphire with anti-reflective coating on the inner side. The SW510 BH b is the horizontal bicompax, no-date execution of the SW510 (small seconds at 9, 30-minute counter at 3); Unimatic quotes 28,800 bph, 27 jewels, 56h minimum and 62h typical power reserve and +/-5 s/day, without naming a grade or claiming regulation. Titanium grey dial with two subdials, GL dark orange lume, warm grey seconds rail and trims, skeleton hands and a safari orange seconds tip; safari orange quick-release TPU strap plus a Solaro fabric strap. Unimatic's page says to buy it from Sease and shows no price; the price is Sease's (4,510 EUR, where it is listed as the Amos Titanium Hour Glass). Sease's listing calls the dial dark orange and gives +/-5 s/month; Unimatic's sheet, page and photos show a grey dial, recorded, and say +/-5 s/day.

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

Sources