Jacob & Co. Twin Turbo Furious 38 mm Skeletonised Sapphire

Case, dial & bracelet

Case dimensions

38 mm

Case thickness

8.8 mm

Case material

Sapphire crystal case

Bezel

Fixed brushed titanium

Crystal

Anti-reflective sapphire, double-domed

Dial

Skeletonised

Hands

Skeletonised sword hands, white luminescent

Indexes

Diamond-set hour markers

Bracelet / strap

NATO textile strap

Clasp / buckle

Pin buckle in matching case metal

Water resistance

150 m

Movement

Movement / calibre

Calibre 34D — In-house automatic with 22k gold rotor

Movement type

Automatic with micro-rotor

Frequency

28,800 vph (4 Hz)

Power reserve

38 hours

Number of jewels

40 jewels

Complications

GMT / second time zone

Functions

Perpetual calendar, leap year

Watchmaker

The calibre is built in-house and adjusted in five positions before delivery.

Production & market

Production period

1986 – 2002

Limited-edition quantity

Not applicable

Current market information

Thin secondary-market supply — pricing is set piece by piece at auction.

Designer

In-house design studio

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

Jacob & Co. Twin Turbo Furious 38 mm Skeletonised Sapphire sits within Jacob & Co.'s Twin Turbo Furious line, introduced in 1986. It carries the house codes established since 1986 — sapphire crystal case case, skeletonised dial and in-house automatic with 22k gold rotor — and is one of the references collectors use to date the evolution of the collection.

Interesting facts

• The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
• 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.