Only Online Auction

Geneva, Dec 08, 2022

LOT 131

Horological School of Tramelan
Chronograph, minute counter, black dial, calibre Valjoux 23; stainless steel

CHF 1,000 - 2,000

EUR 1,050 - 2,100 / USD 1,100 - 2,200 / HKD 8,300 - 16,600

Stainless steel, manual-winding, “tonneau”-shaped, gentleman’s wristwatch, water-resistant with screwed case-back, black colour dial, silver colour auxiliary dials, subsidiary seconds at 9 and two horological complications:
· 1/5 second chronograph (activated by the two round-shaped push-pieces) with tachometric scale graduated on the inner bezel for one mile (1 609.33 metres)
· Half-instantaneous 45-minute counter (subsidiary dial at 3 o’clock)


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Grading System
Grade: AA

Very good

Case: 3-9

Good

Scratched

Movement: 3*

Good

Overhaul recommended, at buyer's expense

Dial: 3-01-05

Good

HANDS Original

HANDS Luminous material reapplied

Brand Horological School of Tramelan, Tramelan (Bernese Jura)

Model “Ecole Professionnelle”

Reference 12 012 / V 1321 A

Year circa 1970

Movement No. unnumbered

Case No. 2 293

Material stainless steel

Bracelet black leather strap

Buckle stainless steel buckle

Caliber 13’’’ (based on Valjoux 23 by Reymond Frères, Les Bioux, Vallée de Joux)

Dimensions 40.9 x 37 mm.

Weight 55.3 gr. (approx.)

Signature dial