The Lady Ingenieur SL

Specifications:

quartz calibre 2249 with date indication
- ETA production (ESA calibre 956-111)
- diameter: 17.20 mm
- height of movement: 2.5 mm
- number of jewels: 7
- frequency: 32,768 Hz
- fine adjustment: trimmer
- total production (only partly used in Ingenieur models): 12,900 pieces
tripartite screwed case, water resistant between 5 and 12 atm (depending on model)
- top part with bezel: flat surface with 5 recesses (for screwing tools) in stochastical position
- amagnetic to 40,000 A/m, movement protected by Farraday's cage made of soft iron inner case and soft iron dial bottom
- Glass: sapphire
SL-logo with scripture Quartz above index at 6 o'clock
straps and bracelets (metal bracelets of SL type II with raised interlinks)
- leather/croco
- soft band
- stainless steel
- mixte (stainless steel/14 ct. yellow gold)
- 18 ct. yellow gold
- 18 ct. yellow gold with diamonds

reference	name	movement	listed	case bracelet/strap	dials	measurements	remarks
4501	Ingenieur SL Quartz	cal. 2249 quartz date	1981-1986	stainless steel on croco strap mixte (SS/14 ct. YG bezel) on croco strap 18 ct. yellow gold on croco strap	black plated rhodium (white - roman) [gilt]	ø: 26.0 mm	water resistant to 5 or 6 atm amagnetic to 40,000 A/m movement based on ESA quartz calibre 956-111
4502	Ingenieur SL Quartz	cal. 2249 quartz date	1981-1986	stainless steel on steel bracelet mixte (SS/14 ct. YG bezel) on mixte bracelet	black plated rhodium white - roman [gilt]	ø: 26.0 mm	water resistant to 5 or 6 atm amagnetic to 40,000 A/m movement based on ESA quartz calibre 956-111
4503	Ingenieur SL Quartz	cal. 2249 quartz date	1980-1987	stainless steel on steel bracelet mixte (SS/14 ct. YG bezel) on mixte bracelet	black plated rhodium white - roman [gilt]	ø: 30 mm h: 7.2 mm	water resistant to 12 atm amagnetic to 40,000 A/m movement based on ESA quartz calibre 956-111
4508	Ingenieur SL Quartz «Titanium spanish olive»	cal. 2249 quartz date	1983-1985	titanium «spanish olive» on leather or soft strap	plated rhodium black gilt white enamelled (with or w/o tritium)	ø: 26.0 mm	water resistant to 6 atm amagnetic to 40,000 A/m movement based on ESA quartz calibre 956-111
4509	Ingenieur SL Quartz «Titanium spanish olive»	cal. 2249 quartz date	1983-1984 (sold out by January 1985)	titanium «spanish olive» on leather or soft strap	plated rhodium black gilt white enamelled (with or w/o tritium)	ø: 30 mm h: 7.2 mm w: 28 g (Ti/Strap)	water resistant to 12 atm amagnetic to 40,000 A/m movement based on ESA quartz calibre 956-111
4513	Ingenieur SL Quartz	cal. 2249 quartz date	1982-1989	stainless steel on croco strap mixte (SS/14 ct. YG bezel) on croco strap 18 ct. yellow gold on croco strap	gilt white - roman [black] [plated rhodium]	ø: 30 mm h: 7.2 mm	water resistant to 12 atm (SS), 6 atm (G) amagnetic to 40,000 A/m movement based on ESA quartz calibre 956-111
6703	Ingenieur SL Quartz	cal. 2249 quartz date	1980-1984	18 ct. yellow gold on gold bracelet	black gilt	ø: 30 mm h: 7.2 mm	water resistant to 6 atm amagnetic to 40,000 A/m cushioned movement mvmt. based on ESA quartz cal. 956-111 gold version of ref. 4503/4513 succeeded by ref. 6730
6704	Ingenieur SL Quartz	cal. 2249 quartz date	1981-1985 (sold out by July 1985)	18 ct. yellow gold on gold bracelet	[black] gilt	ø: 26.0 mm	water resistant to 5 or 6 atm amagnetic to 40,000 A/m movement based on ESA quartz calibre 956-111 gold version of ref. 4502/4501
6720	Ingenieur SL Quartz	cal. 2249 quartz date	ca. 1982-1985	18 ct. yellow gold on gold bracelet with diamonds on bezel	black plated rhodium gilt white enamelled (with or w/o tritium)	ø: 30 mm h: 7.2 mm	water resistant to 6 atm amagnetic to 40,000 A/m movement based on ESA quartz calibre 956-111 45 diamonds on bezel (0.76 ct.)
6721	Ingenieur SL Quartz	cal. 2249 quartz date	1982-1986	18 ct. yellow gold gold on gold bracelet with diamonds on bracelet, bezel & dial	gold (pavé)	ø: 26.0 mm	water resistant to 6 atm amagnetic to 40,000 A/m movement based on ESA quartz calibre 956-111
6724	Ingenieur SL Quartz	cal. 2249 quartz date	ca. 1982-1987 (not listed)	18 ct. yellow gold on gold bracelet with diamonds on bezel	gilt black	ø: 26.0 mm	water resistant to 6 atm amagnetic to 40,000 A/m movement based on ESA quartz calibre 956-111
6730	Ingenieur SL Quartz	cal. 2249 quartz date	1984-1985	18 ct. yellow gold on gold bracelet	black gilt plated rhodium white enamelled (with or w/o tritium)	ø: 30 mm h: 7.2 mm	water resistant to 6 atm amagnetic to 40,000 A/m cushioned movement mvmt. based on ESA quartz cal. 956-111 gold version of ref. 4503/4513 preceded by ref. 6703

picture

(click on thumbnail
for enlarged version)

reference

name

movement

listed

case

bracelet/strap

dials

measurements

remarks

4501

Ingenieur SL Quartz

cal. 2249

quartz

date

1981-1986

stainless steel on croco strap

mixte (SS/14 ct. YG bezel)
on croco strap

18 ct. yellow gold on croco strap

black

plated rhodium

(white - roman)

[gilt]

ø: 26.0 mm

water resistant to 5 or 6 atm

amagnetic to 40,000 A/m

movement based on
ESA quartz calibre 956-111

4502

Ingenieur SL Quartz

cal. 2249

quartz

date

1981-1986

stainless steel on steel bracelet

mixte (SS/14 ct. YG bezel)
on mixte bracelet

black

plated rhodium

white - roman

[gilt]

ø: 26.0 mm

water resistant to 5 or 6 atm

amagnetic to 40,000 A/m

movement based on
ESA quartz calibre 956-111

4503

Ingenieur SL Quartz

cal. 2249

quartz

date

1980-1987

stainless steel on steel bracelet

mixte (SS/14 ct. YG bezel)
on mixte bracelet

black

plated rhodium

white - roman

[gilt]

ø: 30 mm

h: 7.2 mm

water resistant to 12 atm

amagnetic to 40,000 A/m

movement based on
ESA quartz calibre 956-111

4508

Ingenieur SL Quartz

«Titanium spanish olive»

cal. 2249

quartz

date

1983-1985

titanium «spanish olive»
on leather or soft strap

plated rhodium

black

gilt

white enamelled
(with or w/o tritium)

ø: 26.0 mm

water resistant to 6 atm

amagnetic to 40,000 A/m

movement based on
ESA quartz calibre 956-111

4509

Ingenieur SL Quartz

«Titanium spanish olive»

cal. 2249

quartz

date

1983-1984

(sold out by January 1985)

titanium «spanish olive»
on leather or soft strap

plated rhodium

black

gilt

white enamelled
(with or w/o tritium)

ø: 30 mm

h: 7.2 mm

w: 28 g (Ti/Strap)

water resistant to 12 atm

amagnetic to 40,000 A/m

movement based on
ESA quartz calibre 956-111

4513

Ingenieur SL Quartz

cal. 2249

quartz

date

1982-1989

stainless steel on croco strap

mixte (SS/14 ct. YG bezel)
on croco strap

18 ct. yellow gold on croco strap

gilt

white - roman

[black]

[plated rhodium]

ø: 30 mm

h: 7.2 mm

water resistant to 12 atm (SS), 6 atm (G)

amagnetic to 40,000 A/m

movement based on
ESA quartz calibre 956-111

6703

Ingenieur SL Quartz

cal. 2249

quartz

date

1980-1984

18 ct. yellow gold on gold bracelet

black

gilt

ø: 30 mm

h: 7.2 mm

water resistant to 6 atm
amagnetic to 40,000 A/m
cushioned movement

mvmt. based on ESA quartz cal. 956-111

gold version of ref. 4503/4513
succeeded by ref. 6730

6704

Ingenieur SL Quartz

cal. 2249

quartz

date

1981-1985

(sold out
by July 1985)

18 ct. yellow gold on gold bracelet

[black]

gilt

ø: 26.0 mm

water resistant to 5 or 6 atm

amagnetic to 40,000 A/m

movement based on
ESA quartz calibre 956-111

gold version of ref. 4502/4501

6720

Ingenieur SL Quartz

cal. 2249

quartz

date

ca. 1982-1985

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

black

plated rhodium

gilt

white enamelled
(with or w/o tritium)

ø: 30 mm

h: 7.2 mm

water resistant to 6 atm

amagnetic to 40,000 A/m

movement based on
ESA quartz calibre 956-111

45 diamonds on bezel (0.76 ct.)

6721

Ingenieur SL Quartz

cal. 2249

quartz

date

1982-1986

18 ct. yellow gold gold
on gold bracelet
with diamonds on bracelet, bezel & dial

gold (pavé)

ø: 26.0 mm

water resistant to 6 atm

amagnetic to 40,000 A/m

movement based on
ESA quartz calibre 956-111

6724

Ingenieur SL Quartz

cal. 2249

quartz

date

ca. 1982-1987

(not listed)

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

gilt

black

ø: 26.0 mm

water resistant to 6 atm

amagnetic to 40,000 A/m

movement based on
ESA quartz calibre 956-111

6730

Ingenieur SL Quartz

cal. 2249

quartz

date

1984-1985

18 ct. yellow gold on gold bracelet

black

gilt

plated rhodium

white enamelled
(with or w/o tritium)

ø: 30 mm

h: 7.2 mm

water resistant to 6 atm
amagnetic to 40,000 A/m
cushioned movement

mvmt. based on ESA quartz cal. 956-111

gold version of ref. 4503/4513
preceded by ref. 6703

Specifications:

automatic calibre 320 resp. 3201 with ball bearing rotor (heavy metal) and date indication
- Frédéric Piguet production (F. Piguet calibre 951, 952)
- diameter: 20.40 mm
- height of movement: 3.20 mm
- number of jewels: 19
- frequency: 21,600 A/h = 3 Hz
- balance spring: flat
- shock resistance: Kif-Ultraflex
- total production: n/a
tripartite screwed case, water resistant between 5 and 12 atm (depending on model)
- top part with bezel: flat surface with 5 recesses (for screwing tools) in stochastical position
- amagnetic to 40,000 A/m, movement protected by Farraday's cage made of soft iron inner case and soft iron dial bottom
- glass: sapphire
scripture AUTOMATIC above index at 6 o'clock (neither Ingenieur- nor SL-logo on dial)
straps and bracelets (metal bracelets of SL type II with raised interlinks)
- leather
- stainless steel
- mixte (stainless steel/14 ct. yellow gold)

picture (click on thumbnail for enlarged version)	reference	name	movement	listed	case bracelet/strap	dials	measurements	remarks
	4413	Ingenieur SL Automatic	cal. 320 (cal. 3201) automatic date	1986-1989	stainless steel on leather strap mixte (SS/14 ct. YG bezel) on leather strap 18 ct. yellow gold on leather strap	white enamelled (with or w/o tritium) plated rhodium black gilt	ø: 30 mm h: 7.2 mm ?	water resistant to 6 atm amagnetic to 40,000 A/m movement based on F Piguet 951=320, 952= 3201
	4414	Ingenieur SL Automatic	cal. 320 (cal. 3201) automatic date	1986-1989	stainless steel on steel strap mixte (SS/14 ct. YG bezel) on steel bracelet mixte (SS/14 ct. YG bezel) on mixte bracelet	white enamelled (with or w/o tritium) plated rhodium black gilt	ø: 30 mm h: 7.2 mm ?	water resistant to 6 atm amagnetic to 40,000 A/m movement based on F Piguet 951=320, 952= 3201

picture

(click on thumbnail
for enlarged version)

reference

name

movement

listed

case

bracelet/strap

dials

measurements

remarks

4413

Ingenieur SL Automatic

cal. 320

(cal. 3201)

automatic

date

1986-1989

stainless steel on leather strap

mixte (SS/14 ct. YG bezel) on leather strap

18 ct. yellow gold on leather strap

white enamelled
(with or w/o tritium)

plated rhodium

black

gilt

ø: 30 mm

h: 7.2 mm ?

water resistant to 6 atm

amagnetic to 40,000 A/m

movement based on
F Piguet 951=320, 952= 3201

4414

Ingenieur SL Automatic

cal. 320

(cal. 3201)

automatic

date

1986-1989

stainless steel on steel strap

mixte (SS/14 ct. YG bezel)
on steel bracelet

mixte (SS/14 ct. YG bezel)
on mixte bracelet

white enamelled
(with or w/o tritium)

plated rhodium

black

gilt

ø: 30 mm

h: 7.2 mm ?

water resistant to 6 atm

amagnetic to 40,000 A/m

movement based on
F Piguet 951=320, 952= 3201

	1980-1989: The «Lady Ingenieur SL» with automatic or quartz movement	deutsche Version
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The «Lady Ingenieur SL» with quartz movement (1980-1987/89)

The «Lady Ingenieur SL» with automatic movement (1986-1989)