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.
Sinn · EZM
Sinn EZM 36 mm Black Platinum
Reference 19319OR.52
Reference at a glance
- Brand
- Sinn
- Collection
- EZM
- Model
- Sinn EZM 36 mm Black Platinum
- Reference number
- 19319OR.52
- Year / era
- 2015 · 2010s — modern production
- Complication
- Flyback chronograph
- Movement
- Automatic, 38-hour reserve
- Case material
- Platinum 950
- Dial type
- Black lacquer
- Strap / bracelet
- Rubber strap with titanium clasp
- Water resistance
- 100 m
- Limited-edition status
- Limited edition of 100 pieces
Case, dial & bracelet
- Case dimensions
- 36 mm
- Case thickness
- 12.6 mm
- Case material
- Platinum 950
- Bezel
- Smooth polished
- Crystal
- Sapphire with internal AR treatment
- Dial
- Black lacquer
- Hands
- Rhodium-plated baton hands with luminous fill
- Indexes
- Applied faceted white-gold indexes
- Bracelet / strap
- Rubber strap with titanium clasp
- Clasp / buckle
- Folding clasp in matching case metal
- Water resistance
- 100 m
Movement
- Movement / calibre
- Calibre 66E — Automatic, 38-hour reserve
- Movement type
- Automatic, self-winding
- Frequency
- 21,600 vph (3 Hz)
- Power reserve
- 45 hours
- Number of jewels
- 27 jewels
- Complications
- Flyback chronograph
- Functions
- Hours, minutes, small seconds
- Watchmaker
- Finishing, assembly and timing are carried out in the manufacture's own atelier.
Production & market
- Production period
- 2015 – 2028
- Limited-edition quantity
- 100 pieces
- Current market information
- Consistently trades above retail; waiting lists at authorised dealers remain long.
Designer
Jörg Hysek
Jörg Hysek left Rolex and Seiko's European studios to build a design practice in Geneva, giving houses such as Vacheron Constantin, Breguet, Seiko and TAG Heuer their sculptural, architecture-led cases before founding his own brand, HD3.
Historical significance
Sinn EZM 36 mm Black Platinum sits within Sinn's EZM line, introduced in 2015. It carries the house codes established since 1961 — platinum 950 case, black lacquer dial and automatic, 38-hour reserve — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- The bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
- The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
The House
Sinn
Brand facts
- Founding year
- 1961
- Founder
- Helmut Sinn
- Headquarters
- Germany
- Tier
- Affordable & Tool Watches
- Major collections
- 556, 104, EZM, U1, 903, Hydro
- Signature technologies
- Anti-magnetic silicon escapement · Shock-absorbing movement mounting
- Famous movements
- Automatic, 38-hour reserve · Automatic Powermatic 80 · Automatic COSC chronometer · Quartz
- Notable watches
- Sinn 556 42 mm Silvered 18k (1975) · Sinn 556 43 mm Slate Sapphire (1961) · Sinn 556 36 mm Mother-of-pearl 18k (1976) · Sinn 556 43 mm Ice 18k (1965)
Brand history
Sinn has spent more than 65 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's 556, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Helmut Sinn established Sinn in 1961, working from Germany at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Sinn calibre produced today.
Historical milestones
1961
Helmut Sinn founds Sinn in Germany.
1969
The quartz era forces Sinn to redefine mechanical watchmaking.
1990
Sinn enters the modern collector market with its signature lines.
2024
Sinn continues to produce 556, 104, EZM and other icons in limited numbers.