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Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →The U1S-T-MP and U2S-T-MP share a sandblasted Grade II titanium case, automatic Sellita movement and 300 m water-resistance rating, but they serve different tastes: the Uno adds a 60-minute dive bezel and date, while the bezel-free Due is a time-only field watch. The Uno is larger; the Due is slimmer in diameter but has the same stated thickness. Neither model’s official listing currently shows it as available.
What is the difference between the U1S-T-MP and U2S-T-MP?
The clearest distinction is the dial-side layout. The Modello Uno U1S-T-MP is the dive-oriented option, with a unidirectional safety bezel and a date at 6 o’clock. The Modello Due U2S-T-MP has no bezel and no date, keeping the display to hours, minutes and seconds. UNIMATIC describes the Uno as a “slim titanium professional diving watch” and the Due as a “slim titanium field watch” with 300 m diving-grade water resistance.
| Specification | Modello Uno U1S-T-MP | Modello Due U2S-T-MP |
|---|---|---|
| Design | Diver with unidirectional safety bezel | Field-watch layout, without a bezel |
| Display | Date at 6; hours, minutes and seconds | Time only; no date |
| Case diameter | 40 mm; 41.5 mm across the bezel (UNIMATIC technical sheet) | 38 mm in the technical sheet; the product page states 38.5 mm |
| Height from lug to lug | 49 mm (UNIMATIC technical sheet) | 47.5 mm (UNIMATIC technical sheet) |
| Thickness | 11.6 mm (UNIMATIC technical sheet) | 11.6 mm (UNIMATIC technical sheet) |
| Water resistance | 300 m / 30 atm, manufacturer specification | 300 m / 30 atm, manufacturer specification |
| Crystal | 2.5 mm double-domed sapphire, inner anti-reflective coating | 2.7 mm ultra double-domed sapphire, inner anti-reflective coating |
| Movement | Automatic Sellita SW200-1 | Automatic Sellita SW200-1 |
| Edition and origin | Numbered edition of 500; Made in Italy | Numbered edition of 500; Made in Italy |
How big is the Unimatic U2S-T-MP?
UNIMATIC’s technical sheet gives the Due a 38 mm case diameter, a 47.5 mm lug-to-lug length and an 11.6 mm thickness. Its product page instead lists a 38.5 mm diameter, so the two official sources do not agree on that measurement. For the Uno, the technical sheet lists a 40 mm case, a 41.5 mm bezel and a 49 mm lug-to-lug length, also at 11.6 mm thick. On the published dimensions, the Due is the smaller-diameter and shorter watch, while neither is thinner than the other.
Those figures help compare proportions, but they do not establish how either watch feels on a particular wrist. No independent wear test is available here, so comfort and perceived size should not be inferred from the specifications alone.
#1 Best Overall
- Swiss Made Watch
- Movement: Automatic MIDO caliber with Day/Date calendar - Power reserve 80 hours
- Case Type: Diver-style Titanium case with black rotating bezel - Capable of withstanding pressures of up to 20 bar (200 m/660 ft), and equipped with a screw-down crown, this watch offers optimal protection against water.
- Case Size: 42.5mm - Case Thickness: 11.8mm - Anthracite color dial offering indexes filled with Super-Luminova and skeletonised hands - Crystal: Sapphire crystal with double sided anti-reflection treatment
- Band Type: Titanium bracelet - Folding clasp with diving extension - Band Width: 22mm
What do the titanium cases and dials share?
Both cases are sandblasted Grade II titanium and both models are specified for 300 m / 30 atm water resistance. UNIMATIC says each watch is individually tested for accuracy and water resistance; these are manufacturer statements, not independent test results.
Both watches have a blu notte dial, white BGW09 luminous material and silver-colored dial details. The Uno pairs its dive bezel with a silver open second rail and a date window at 6. The Due uses a silver closed second rail and omits the date. Both use the same general phantom-ladder hour and minute hand style, with a luminous tip on the seconds hand. Their sapphire crystals differ: the Uno’s is specified as 2.5 mm thick, and the Due’s as 2.7 mm.
Rank #2
- Titanium case 45mm diameter x 15mm thick; Exhibition case back; Black dial; Luminous hands and hour markers
- NH35A Japanese Automatic movement, 24 jewel; Assembled in Malaysia; Watch weight: 122 grams
- Titanium band, 220mm L x 22mm W; Band is adjustable by adding/removing links; Fold over safety clasp
- Mineral crystal; Screw-down crown; Unidirectional Titanium bezel with Black top ring; Magnified date window; 200 meter water resistant: Suitable for professional marine activity and surface water sports. Suitable for diving.
What movement is inside each watch?
Each model uses an automatic Sellita SW200-1. UNIMATIC’s technical sheets list 28,800 beats per hour, 26 jewels, hacking seconds, hand-winding and a 38-hour power reserve for both. The stated reserve is a specification; it does not establish the measured running time or accuracy of an individual watch.
What strap width fits the U1S-T-MP or U2S-T-MP?
Both watches have 22 mm drilled lugs, according to their technical sheets. Each is supplied with a blu notte two-piece TPU strap with titanium hardware and an additional blu notte seatbelt-style strap. The Uno’s technical sheet identifies the extra strap as NATO, while the Due’s calls it a two-piece seatbelt strap. Anyone buying an alternative strap should confirm its attachment, length, material and finish rather than relying on width alone.
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Rank #3
- Case Size: 12.20 mm, Band Width: 38.00 mm, Case Thickness: 38.00 mm
- Swiss Automatic movement, Titanium case, DATE, Grey band
- Band Type : Titanium, Band Length: 175mm
- Water-resistant Diver's watch 300m according to ISO 6425:2018
- 2 Year International Warranty
Are these watches still available?
At the time checked, both official UNIMATIC product pages displayed “sold out.” They showed tax- and duties-included prices of €1,440 for the U1S-T-MP and €1,100 for the U2S-T-MP, and each listing described a 24-month warranty. These are page listings, not confirmed available offers or estimates of resale value; inventory and displayed prices can change.
Quick Recap
Best Value
- Case Size: 38 mm, Band Width: 13.00 mm, Case Thickness: 38.00 mm
- Automatic movement, Powermatic 80, Nivachron, Index dial type, Date
- Band Type : Titanium, Band Length: 175mm
- Water-resistant Diver's watch 300m according to ISO 6425:2018
- 2 Year International Warranty
Rank #4
- Case Size: 43.00 mm, Band Width: 21, Case Thickness: 13.10 mm
- Automatic movement, Powermatic 80, Nivachron, Index dial type, Date
- Titan bracelet, Double Locking Foldover Clasp
- Water-resistant up to 300 m / 990 ft: suitable for diving and/or snorkeling.
- 2 Year International Warranty
- UNIMATIC Modello Uno U1S-T-MP product page
- UNIMATIC Modello Due U2S-T-MP product page
- UNIMATIC U1S-T-MP technical sheet
- UNIMATIC U2S-T-MP technical sheet
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
