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1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsUNIMATIC’s Diving Heritage collection pairs three watch types with three colorways, creating nine variants. The lineup comprises the Modello Uno automatic diver, Modello Uno GMT, and Modello Tre chronograph, each offered in matte black, tropical brown, and vintage navy. Launch prices reported in July 2025 are historical; an official listing for the brown U1-DHBR showed €765 including taxes and duties and was marked sold out when accessed on October 7, 2026.
What is in the Diving Heritage collection?
UNIMATIC introduced the series in July 2025 as a three-by-three lineup: three functional models, each in three colors. Hodinkee’s launch coverage reported 300 pieces per model, making the collection nine variants in total—not nine separate movement or case designs.
| Model | Movement and function | Colorways | Edition information |
|---|---|---|---|
| Modello Uno diver (U1) | Automatic NH35A; conventional three-hand diver | Matte black, tropical brown, vintage navy | 300 pieces per model, as reported at launch |
| Modello Uno GMT (U1 GMT) | Automatic NH34A; second-time-zone hand and 24-hour bezel insert | Matte black, tropical brown, vintage navy | 300 pieces per model, as reported at launch |
| Modello Tre chronograph (U3) | VK64A meca-quartz; chronograph with 60-minute counter | Matte black, tropical brown, vintage navy | 300 pieces per model, as reported at launch |
The launch structure and quantity are reported by Hodinkee’s July 22, 2025 launch coverage. The official product pages cited below verify specifications for the brown examples; they do not establish that every color variant has identical details.
How do the three models differ?
Modello Uno: a straightforward automatic diver
The U1-DHBR uses an automatic NH35A movement and presents the collection’s conventional diver configuration. UNIMATIC’s brown-model product page lists a 40 mm stainless-steel case, 41.5 mm bezel diameter, unidirectional 120-click bezel, double-domed anti-reflective sapphire crystal, and Old Radium Super-LumiNova markers. Its stated water resistance is 300 m, and the reference is individually numbered in an edition of 300.
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#1 Best Overall
- Round watch featuring corrugated unidirectional bezel, luminous hands/markers, and magnified date window at 3 o'clock
- 40 mm, Length: 210mm, 23k gold-plated stainless steel case with mineral dial window. Movement Caliber: NH35A
- Japanese automatic movement with analog display
- Gold & Stainless steel tone bracelet with foldover clasp with safety closure
- Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving.
Modello Uno GMT: a second time zone
The U1-GMT-DHBR uses an automatic NH34A GMT movement. Its 24-hour bezel insert and additional hand allow the wearer to track a second time zone. The official page lists 300 m water resistance and an individually numbered 300-piece edition for this brown GMT reference.
Modello Tre: chronograph timing
The U3-DHBR is the chronograph option, powered by a VK64A meca-quartz caliber. Its listed functions include a 60-minute counter, and UNIMATIC estimates approximately three years of battery life. The official page also specifies 300 m water resistance and an individually numbered edition of 300.
Rank #2
- Stainless steel case 40mm diameter x 14mm thick; Exhibition case back; Black dial; Luminous hands and hour markers
- NH35A Japanese Automatic movement, 24 jewel; Assembled in Malaysia; Watch weight: 155 grams
- Stainless steel band, 210mm L x 20mm W; Band is adjustable by adding/removing links; Fold over safety clasp
- Mineral crystal; Screw-down crown; Diver stainless steel bezel with black top bezel ring; 200 meter water resistant: Suitable for professional marine activity and surface water sports. Suitable for diving.
In practical terms, choose by function first: the U1 for a conventional automatic diver, the U1 GMT for a second time zone, or the U3 for elapsed-time measurement. Color is a separate choice among matte black, tropical brown, and vintage navy.
What are the specifications of the U1-DHBR?
The brown U1 is the most fully detailed example in the cited official listings:
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- Invicta Pro Diver Automatic Champagne Dial Men's Watch 49317
- Case: 40 mm stainless steel; 41.5 mm across the bezel.
- Movement: automatic NH35A.
- Crystal: double-domed sapphire with anti-reflective treatment.
- Bezel: unidirectional, 120 clicks.
- Dial markers: Old Radium Super-LumiNova.
- Water resistance: 300 m, as stated for this model.
- Strap: quick-release TPU, 22 mm wide.
- Edition: individually numbered, 300 pieces.
UNIMATIC says on the official page that every watch is individually tested to ensure a minimum water resistance of 300 m (30 ATM), while selected watches with its enhanced Modello 1 case construction are tested to 600 m (60 ATM). The 600 m figure is a qualification for selected models, not the stated rating of the U1-DHBR, which is listed at 300 m.
The stated 22 mm strap width identifies the lug-side width, but does not by itself establish that every third-party strap will fit or attach correctly. Check the strap’s attachment design and dimensions before buying a replacement.
Rank #4
- Stainless steel case 42mm diameter x 14.2mm thick; Exhibition case back; Black dial; Luminous hands and hour markers
- NH35A Japanese Automatic movement, 24 jewel; Assembled in Malaysia; Watch weight: 142 grams
- Stainless steel band, 215mm L x 22mm W; Band is adjustable by adding/removing links; Fold over safety clasp
- Mineral crystal; Screw-down crown; Uni-directional stainless steel bezel with black and green top bezel ring; 200 meter water resistant: Suitable for professional marine activity and surface water sports. Suitable for diving.
What did the watches cost at launch, and what is listed now?
Hodinkee’s July 22, 2025 launch story reported prices of €625 for the Modello Uno diver and Modello Tre chronograph, and €750 for the Modello Uno GMT. These are launch-time figures, not current offers.
When accessed on October 7, 2026, UNIMATIC’s official U1-DHBR page listed €765 including taxes and duties and showed the watch as sold out. The official pages for the brown U1 GMT and U3 also showed those variants sold out at that time. These are observed page states, not guarantees of present-day inventory; check the relevant product page for current price and availability. The cited sources do not provide a fully comparable price history, so the launch and later listing figures should not be treated as a like-for-like price change.
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Quick Recap
Best Value
- Steel and gold tone stainless steel case 40mm diameter x 14mm thick; Exhibition case back; Black dial; Luminous hands and hour markers
- NH35A Japanese Automatic movement, 24 jewel; Assembled in Malaysia; Watch weight: 152 grams
- Steel and gold tone stainless steel band, 205mm L x 20mm W; Band is adjustable by adding/removing links; Fold over safety clasp
- Mineral crystal; Screw-down crown; Unidirectional stainless steel bezel with black top bezel ring; 200 meter water resistant: Suitable for professional marine activity and surface water sports. Suitable for diving.
- Automatic movement means that this timeless watch powers a quality Japanese-automatic movement with the simple movement of your arm.
Sources and model pages
- UNIMATIC U1-DHBR official product page — specifications, strap width, edition, and observed price and availability.
- UNIMATIC U1-GMT-DHBR official product page — GMT specifications and observed availability.
- UNIMATIC U3-DHBR official product page — chronograph specifications and observed availability.
- Hodinkee, July 22, 2025 — launch lineup, reported edition quantities, and launch prices.
- Fratello Watches, July 22, 2025 — additional launch coverage.
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.
