The Ingenieur SL Perpetual

Specifications:

automatic calibre 3757 with ball bearing gold rotor and perpetual calendar
- based on ETA calibre 2892-A, modified for first version of the Da Vinci perpetual module
- diameter: 30 mm
- height of movement: 5 mm
- number of jewels: 37
- frequency: 28,800 A/h = 4 Hz
- balance spring: flat
- shock resistancy: Incabloc
- fine adjustment: Etachron
- surface: gilt
central second
perpetual calendar and moonphase
- moonphase at 12 o'clock
- day indication (analogue) at 3 o'clock
- month indication (analogue) at 6 o'clock
- week-day indication (analogue) at 9 o'clock
- year indication (4 digits) at 7 o'clock
tripartite screwed case
- waterresistant to 3 atm
- top part with bezel: flat surface with 5 recesses (for screwing tools) in stochastical position
- amagnetic to 40,000 A/m (inner soft iron cage?)
- glass: Sapphire
bracelet: 18 ct. yellow gold (type «Ingenieur perpetual»)

picture (click on thumbnail for enlarged version)	reference	name	movement	listed	case bracelet/strap	dials	measurements	remarks
	9240	Ingenieur SL Perpetual Calendar	cal. 3757 perpetual	1985-1986	18 ct. yellow gold on gold bracelet	white mat [black]	ø: 34.5 mm	water resistant to 3 atm amagnetic to 40,000 a/m 1st version of Da Vinci perpetual module movement based on ETA cal. 2892 A
	9241	Ingenieur SL Perpetual Calendar	cal. 3757 perpetual	1987	18 ct. yellow gold on gold bracelet with diamonds on bezel	white mat [black]	ø: 34.5 mm	water resistant to 3 atm amagnetic to 40,000 a/m 1st version of Da Vinci perpetual module movement based on ETA cal. 2892-A same ref. no. used for Mark XII

picture

(click on thumbnail
for enlarged version)

reference

name

movement

listed

case

bracelet/strap

dials

measurements

remarks

9240

Ingenieur SL
Perpetual Calendar

cal. 3757

perpetual

1985-1986

18 ct. yellow gold on gold bracelet

white mat

[black]

ø: 34.5 mm

water resistant to 3 atm

amagnetic to 40,000 a/m

1st version of Da Vinci
perpetual module
movement based on ETA cal. 2892 A

9241

Ingenieur SL
Perpetual Calendar

cal. 3757

perpetual

1987

18 ct. yellow gold on gold bracelet
with diamonds on bezel

white mat

[black]

ø: 34.5 mm

water resistant to 3 atm

amagnetic to 40,000 a/m

1st version of Da Vinci perpetual module
movement based on ETA cal. 2892-A

same ref. no. used for Mark XII

Specifications:

automatic calibre 3758x with ball bearing gold rotor and perpetual calendar
- based on ETA calibre 2892-A2, modified for 2nd and 3rd version of the Da Vinci perpetual module
  - calibre 3758: 1st version of perpetual module (steel plate)
  - calibre 37582: 2nd version of perpetual module (brass plate, by a half milimeter higher)
- diameter: 30 mm
- height of movement:
- calibre 3578: 5 mm
- calibre 35782: 5.05 mm
- number of jewels: 39 (other countings name 36 or 37)
- frequency: 28,800 A/h = 4 Hz
- balance spring: flat
- shock resistancy: Incabloc
- fine adjustment: Etachron
- surface: gilt
central second
perpetual calendar and moonphase
- moonphase at 12 o'clock
- day indication (analogue) at 3 o'clock
- month indication (analogue) at 6 o'clock
- week-day indication (analogue) at 9 o'clock
- year indication (4 digits) at 7 o'clock
tripartite screwed case
- waterresistant to 3 atm
- top part with bezel: flat surface with 5 recesses (for screwing tools) in stochastical position
- amagnetic to 40,000 A/m (inner soft iron cage?)
- glass: Sapphire
straps & bracelets (gold bracelets of type «Ingenieur perpetual»)
- croco
- 18 ct. yellow gold
- 18 ct. yellow gold with diamonds

reference	name	movement	listed	case bracelet/strap	dials	measurements	remarks
3540	Ingenieur SL Perpetual Calendar	cal. 37580 cal. 37582 perpetual	1987-1989/90 1989/90-1992	18 ct. yellow gold on croco strap	white mat [black]	ø: 34.5 mm	water resistant to 3 atm amagnetic to 40,000 A/m 1st or 2nd version Da Vinci perpetual module movement based on ETA cal. 2892 A2 base reference 9245
9245	Ingenieur SL Perpetual Calendar	cal. 37580 cal. 37582 perpetual	1987-1989 1989-1992	18 ct. yellow gold on gold bracelet	white mat black	ø: 34.5 mm	water resistant to 3 atm amagnetic to 40,000 a/m 2nd or 3rd version of Da Vinci perpetual module movement based on ETA cal. 2892 A2
9260	Ingenieur SL Perpetual Calendar	cal. 37580 cal. 37582 perpetual	1987-1989 1989-1990	18 ct. yellow gold on gold bracelet with diamonds on bezel and bracelet	white mat [black]	ø: 34.5 mm	water resistant to 3 atm amagnetic to 40,000 a/m 1st or 2nd version of Da Vinc perpetual module movement based on ETA cal. 2892 A2 base reference 9245
9263	Ingenieur SL Perpetual Calendar	cal. 37580 cal. 37582 perpetual	1988-1989 1989-1991	18 ct. yellow gold on gold bracelet with diamonds on bezel	white mat [black]	ø: 34.5 mm	water resistant to 3 atm amagnetic to 40,000 a/m 1st or 2nd version of Da Vinci perpetual module movement based on ETA cal. 2892 A2 base reference 9245

picture

(click on thumbnail
for enlarged version)

reference

name

movement

listed

case

bracelet/strap

dials

measurements

remarks

3540

Ingenieur SL
Perpetual Calendar

cal. 37580

cal. 37582

perpetual

1987-1989/90

1989/90-1992

18 ct. yellow gold on croco strap

white mat

[black]

ø: 34.5 mm

water resistant to 3 atm

amagnetic to 40,000 A/m

1st or 2nd version Da Vinci perpetual module
movement based on ETA cal. 2892 A2
base reference 9245

9245

Ingenieur SL
Perpetual Calendar

cal. 37580

cal. 37582

perpetual

1987-1989

1989-1992

18 ct. yellow gold on gold bracelet

white mat

black

ø: 34.5 mm

water resistant to 3 atm

amagnetic to 40,000 a/m

2nd or 3rd version of Da Vinci
perpetual module
movement based on ETA cal. 2892 A2

9260

Ingenieur SL
Perpetual Calendar

cal. 37580

cal. 37582

perpetual

1987-1989

1989-1990

18 ct. yellow gold on gold bracelet
with diamonds on bezel and bracelet

white mat

[black]

ø: 34.5 mm

water resistant to 3 atm

amagnetic to 40,000 a/m

1st or 2nd version of Da Vinc
perpetual module
movement based on ETA cal. 2892 A2
base reference 9245

9263

Ingenieur SL
Perpetual Calendar

cal. 37580

cal. 37582

perpetual

1988-1989

1989-1991

18 ct. yellow gold on gold bracelet
with diamonds on bezel

white mat

[black]

ø: 34.5 mm

water resistant to 3 atm

amagnetic to 40,000 a/m

1st or 2nd version of Da Vinci
perpetual module
movement based on ETA cal. 2892 A2
base reference 9245

	1985-1992: The «Ingenieur SL Perpetual» with automatic movement (cal. 3757, 3758x) and Da Vinci perpetual module	deutsche Version
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The first version of the perpetual models (1985-1986/87)

Later versions of the perpetual models (1987-1992)