Important Modern & Vintage Timepieces

Hong Kong, Jul 23, 2020

LOT 362

Patek Philippe
Ref. E 1207, marine chronometer, “Naviquartz II”; aluminium, mahogany and gilded brass

HKD 24,000 - 32,000

CHF 3,000 - 4,000 / USD 3,200 - 4,200

Aluminium, mahogany and gilded brass, quartz, rectangular-shaped, marine chronometer, with jumping centre-seconds. The chronometer can be removed from its wooden case and placed or suspended in a vertical position.


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Grading System
Grade: AAA

Excellent

Case: 3

Good

Movement: 3*

Good

Overhaul recommended, at buyer's expense

Dial: 3-01

Good

HANDS Original

Brand Patek Philippe, Geneva

Model Naviquartz II

Reference E1207

Year circa 1982

Movement No. 1 804 031

Caliber 33 QZ, electronic (16 384 Hz), battery-powered with quartz standardization (with one battery, 1.5 V, UM-1 type)

Dimensions 80 x 169 x 229 mm. (59 x 140 x 200 mm. without mahogany case) / Weight 2.9 kg. (1.870 kg. without case)

Signature dial, case and movement

Accessories instruction booklet; Extract from the Archives

Notes

The Extract from the Archives, dated April 1st, 2016, mentioned that this marine chronometer was sold on May 11, 1982.
Patek Philippe, “Naviquartz”
The “Naviquartz” is publicly presented at the Basel Fair in 1970 but produced since 1969 (or very late 1968) until the late-1980’s. This chronometer is a high precision timepiece primarily used for celestial navigation and determination of longitude. An accurate chronometer was essential to deep sea marine or air navigation out of sight of land. The “Naviquartz” was made in three series; first, with calibre RH 29; then, circa 1974, with an improved calibre 33 QZ (16 384 Hz; respectively mark I, mark II and mark III); then, with calibre 33 (32 768 Hz):
“Naviquartz I”, calibre RH 29, without or with a two-piece wood cabinet with glazed cover (without key), available under:
Ref. 1200, black dial with outer seconds graduation (so-called “instrumentation dial”) and white “Bâton” hands, silver fausse-plaque (false plate) with the mention “Naviquartz”, with black leather box.
Ref. 1201, idem with wood cabinet.
“Naviquartz II”, calibre 33 QZ (16 384 Hz), two-piece wood cabinet with glazed cover and brass protections on each corners (with key), available under:
Ref. 1202, black dial with outer seconds graduation (so-called “instrumentation dial”) and white “Bâton” hands, silver fausse-plaque (false plate) with the mention “NAVIQUARTZ”.
  • Ref. 1207, silver dial and “Breguet” black hands, silver fausse-plaque (false plate) with the mention “NAVIQUARTZ”.
  • Ref. 1208, gilded dial and “Breguet” black hands, gilded fausse-plaque (false plate) with the small mention, lower right, “Naviquartz”.
  • “Naviquartz III”, calibre 33 (32 768 Hz), three-piece small wood cabinet wit plain cover and brass protections on each corners (with push-pieces), available under:
  • Ref. 1215 HF (high frequency), white dial and “Breguet” black hands, gilded fausse- plaque (false plate).