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.
Bulgari · Serpenti
Bulgari Serpenti 36 mm Green Grade
Reference 26155OR.29
Reference at a glance
- Brand
- Bulgari
- Collection
- Serpenti
- Model
- Bulgari Serpenti 36 mm Green Grade
- Reference number
- 26155OR.29
- Year / era
- 1964 · 1960s — pre-quartz mechanical era
- Complication
- Annual calendar
- Movement
- In-house automatic chronograph
- Case material
- Grade 5 titanium
- Dial type
- Green sunburst
- Strap / bracelet
- Oyster bracelet
- Water resistance
- 200 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 36 mm
- Case thickness
- 8.8 mm
- Case material
- Grade 5 titanium
- Bezel
- Smooth polished
- Crystal
- Box sapphire with AR coating
- Dial
- Green sunburst
- Hands
- Rhodium-plated baton hands with luminous fill
- Indexes
- Applied Roman numerals
- Bracelet / strap
- Oyster bracelet
- Clasp / buckle
- Titanium deployant clasp
- Water resistance
- 200 m
Movement
- Movement / calibre
- Calibre 8F — In-house automatic chronograph
- Movement type
- Manual-winding
- Frequency
- 36,000 vph (5 Hz)
- Power reserve
- 5 days
- Number of jewels
- 25 jewels
- Complications
- Annual calendar
- Functions
- GMT second time zone, date
- Watchmaker
- The calibre is built in-house and adjusted in five positions before delivery.
Production & market
- Production period
- 1964 – 1980
- Limited-edition quantity
- Not applicable
- Current market information
- Trades close to retail on the secondary market, with steady demand for full-set examples.
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
Bulgari Serpenti 36 mm Green Grade sits within Bulgari's Serpenti line, introduced in 1964. It carries the house codes established since 1884 — grade 5 titanium case, green sunburst dial and in-house automatic chronograph — 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.
- Early production dials show a slightly different minute track, and collectors pay a premium for them.
The House
Bulgari
Brand facts
- Founding year
- 1884
- Founder
- Sotirio Bulgari
- Headquarters
- Italy
- Tier
- Luxury
- Major collections
- Octo Finissimo, Serpenti, Bulgari Bulgari, Diva's Dream, Aluminium
- Signature technologies
- Proprietary case-hardening and polishing · In-house hairspring production
- Famous movements
- In-house automatic, chronometer certified · In-house automatic chronograph · In-house automatic, Superlative Chronometer · In-house manual-winding
- Notable watches
- Bulgari Octo Finissimo 36 mm Salmon Platinum (1955) · Bulgari Octo Finissimo 42 mm Silvered Sapphire (1984) · Bulgari Octo Finissimo 42 mm Meteorite Stainless (1952) · Bulgari Octo Finissimo 39 mm Silvered 18k (1953)
Brand history
Bulgari has spent more than 142 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Octo Finissimo, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Sotirio Bulgari established Bulgari in 1884, working from Italy at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Bulgari calibre produced today.
Historical milestones
1884
Sotirio Bulgari founds Bulgari in Italy.
1899
Bulgari earns its first international recognition for precision timekeeping.
1969
The quartz era forces Bulgari to redefine mechanical watchmaking.
1990
Bulgari enters the modern collector market with its signature lines.
2024
Bulgari continues to produce Octo Finissimo, Serpenti, Bulgari Bulgari and other icons in limited numbers.