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 · Octo Finissimo
Bulgari Octo Finissimo 41 mm Mother-of-pearl Stainless
Reference 26660ST.16
Reference at a glance
- Brand
- Bulgari
- Collection
- Octo Finissimo
- Model
- Bulgari Octo Finissimo 41 mm Mother-of-pearl Stainless
- Reference number
- 26660ST.16
- Year / era
- 2020 · 2020s — modern production
- Complication
- Tourbillon
- Movement
- In-house automatic, chronometer certified
- Case material
- Stainless steel
- Dial type
- Mother-of-pearl
- Strap / bracelet
- Jubilee bracelet
- Water resistance
- 100 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 41 mm
- Case thickness
- 8.1 mm
- Case material
- Stainless steel
- Bezel
- Octagonal with 8 hexagonal screws
- Crystal
- Flat sapphire with Cyclops lens
- Dial
- Mother-of-pearl
- Hands
- Rhodium-plated baton hands with luminous fill
- Indexes
- Applied faceted white-gold indexes
- Bracelet / strap
- Jubilee bracelet
- Clasp / buckle
- Triple-folding clasp with safety catch
- Water resistance
- 100 m
Movement
- Movement / calibre
- Calibre 74D — In-house automatic, chronometer certified
- Movement type
- High-frequency automatic
- Frequency
- 25,200 vph (3.5 Hz)
- Power reserve
- 45 hours
- Number of jewels
- 31 jewels
- Complications
- Tourbillon
- Functions
- Flying tourbillon, power reserve
- Watchmaker
- The calibre is built in-house and adjusted in five positions before delivery.
Production & market
- Production period
- 2020 – 2028
- Limited-edition quantity
- Not applicable
- Current market information
- Consistently trades above retail; waiting lists at authorised dealers remain long.
Designer
Gérald Genta / Fabrizio Buonamassa Stigliani
The reference was drawn by the manufacture's internal design office, where case, dial and movement architects work alongside the watchmakers rather than as an outside commission.
Historical significance
Bulgari Octo Finissimo 41 mm Mother-of-pearl Stainless sits within Bulgari's Octo Finissimo line, introduced in 2020. It carries the house codes established since 1884 — stainless steel case, mother-of-pearl dial and in-house automatic, chronometer certified — 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 bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
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.