Front view
Dial, hands and bezel as delivered.
Case-back view
Case-back engraving and, where fitted, the sapphire display.
Movement
Calibre with its finishing and decoration.
On the wrist
Worn shot for proportion and strap drape.
HYT · H0
HYT H0 44 mm Slate Grade
Reference 64911OR.66
Reference at a glance
- Brand
- HYT
- Collection
- H0
- Model
- HYT H0 44 mm Slate Grade
- Reference number
- 64911OR.66
- Year / era
- 2012 · 2010s — modern production
- Complication
- GMT / second time zone
- Movement
- In-house automatic micro-rotor
- Case material
- Grade 5 titanium
- Dial type
- Slate grey
- Strap / bracelet
- Jubilee bracelet
- Water resistance
- 300 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 44 mm
- Case thickness
- 9.4 mm
- Case material
- Grade 5 titanium
- Bezel
- Smooth polished
- Crystal
- Sapphire with internal AR treatment
- Dial
- Slate grey
- Hands
- Rhodium-plated baton hands with luminous fill
- Indexes
- Applied Roman numerals
- Bracelet / strap
- Jubilee bracelet
- Clasp / buckle
- Pin buckle in matching case metal
- Water resistance
- 300 m
Movement
- Movement / calibre
- Calibre 40A — In-house automatic micro-rotor
- Movement type
- Automatic with micro-rotor
- Frequency
- 25,200 vph (3.5 Hz)
- Power reserve
- 65 hours
- Number of jewels
- 31 jewels
- Complications
- GMT / second time zone
- Functions
- Hours, minutes, seconds, date
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 2012 – 2021
- Limited-edition quantity
- Not applicable
- Current market information
- Consistently trades above retail; waiting lists at authorised dealers remain long.
Designer
Gérald Genta
Gérald Genta (1931–2011) trained as a goldsmith in Geneva and became the most influential watch designer of the 20th century. Working freelance, he sketched the Audemars Piguet Royal Oak overnight in 1970, followed by the Patek Philippe Nautilus, the IWC Ingenieur SL and the Bulgari Bulgari — defining the integrated-bracelet luxury sports watch as a category.
Historical significance
HYT H0 44 mm Slate Grade sits within HYT's H0 line, introduced in 2012. It carries the house codes established since 2012 — grade 5 titanium case, slate grey dial and in-house automatic micro-rotor — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- The reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
- The movement's bridges are decorated even where they will never be seen once the watch is cased.
The House
HYT
Brand facts
- Founding year
- 2012
- Founder
- Vincent Perriard & Patrick Berdoz
- Headquarters
- Switzerland
- Tier
- Ultra-Luxury & Haute Horlogerie
- Major collections
- H0, H1, H2, H20, Hastroid, Moon Runner
- Signature technologies
- Composite and ceramic case materials · Hand-applied guilloché dials
- Famous movements
- In-house tourbillon, manual-winding · In-house automatic micro-rotor · In-house manual-winding, hand-finished · In-house automatic with 22k gold rotor
- Notable watches
- HYT H0 36 mm Black 18k · HYT H0 44 mm Ice Quartz · HYT H0 44 mm Slate Grade · HYT H0 38 mm Ice Sapphire
Brand history
HYT has spent more than 14 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's H0, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Vincent Perriard & Patrick Berdoz established HYT in 2012, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every HYT calibre produced today.
Historical milestones
2012
Vincent Perriard & Patrick Berdoz founds HYT in Switzerland.
2024
HYT continues to produce H0, H1, H2 and other icons in limited numbers.