Important Modern & Vintage Timepieces

Hong Kong, May 10, 2020

LOT 180

Zenith - Self-winding, chronograph, minute and hour recorders, triple date à guichets, moon, integrated bracelet; “El Primero”; 18K yellow gold

HKD 31,200 - 39,000

USD 4,000 - 5,000 / EUR 3,700 - 4,600 / CHF 4,000 - 5,000

18K yellow gold, self-winding, tonneau-shaped, gentleman’s wristwatch, water-resistant with case-back screwed by four screws, silver colour dial with subsidiary seconds at 9 and seven horological complications: • 1/10 second chronograph (activated by the two round push-pieces) with tachometer scale graduated on the dial for 500 units per hour • Half-instantaneous 30-minute recorder (subsidiary dial at 3 o’clock) • 12-hour recorder (subsidiary dial at 6 o’clock) • Instantaneous date of the month (aperture between 4 and 5 o’clock) • Day of the week (aperture at 10 o’clock; indications given in French) • Month of the year (aperture at 2 o’clock; indications given in French) • Phases of the moon (aperture at 6 o’clock).


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Grading System
Grade: AA

Very good
Case: 2

Very good
Movement: 2 *
Dial: 2-01

Very good

HANDS Original

Brand Zenith, Le Locle

Model “Chronograph Automatic”, “El Primero”

Reference 30.0160.418

Year circa 1985

Movement No. 30.0160.418

Case No. 225 (by Bielna S.A., Bienne / Biel)

Material 18K yellow gold

Bracelet integrated 18K yellow gold Zenith bracelet with deployant clasp

Length 195 mm. (approx.)

Caliber 3019 PHC, unadjusted

Height 44.1 mm.

Width 41.5 mm.

Signature dial, case and movement

Notes

Zenith, “El Primero”
The “El Primero” self-winding chronograph was launched in 1969. It was the world’s first and the only one in its category to measure short periods of time to one-tenth of a second. The lever escapement movement beating 36,000 vibrations / hour (high mechanical frequency) and is fitted with a central rotor mounted on ball bearings. The coordination of chronographic functions is operated by column wheel. 50-hour power-reserve.
At this time, two versions of the calibre exist:
· Z 400, instantaneous change of date with quick setting; 31 jewels, diameter 30 mm., height 6.5 mm., 280 components.
· Z 410, instantaneous change of date and day with quick setting, month and moon phases; 31 jewels, diameter 30 mm., height 7.55 mm., 354 components.