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Catalog / Vintage Watches / Duplain / DUPLAIN – Swiss Made Chronograph Automatic Moon-Phases Calendar Watch

No. 467 DUPLAIN – Swiss Made Chronograph Automatic Moon-Phases Calendar Watch

Specimen No. 467 · Vintage Watches · Duplain

DUPLAIN – Swiss Made Chronograph Automatic Moon-Phases Calendar Watch

DUPLAIN – La Chaux-de-Fonds – automatic chronograph watch, featuring a full calendar (day/date/month), 24 hours and moon phases indications.

Ref.
DUPAUT7751
House
Duplain
Category
Vintage Watches
Stock
Single specimen
CHF 1 000 Single piece · ships from Geneva
Enquire about this specimen Trade enquiry · net pricing on application
No. 02 / Plates

Every angle, plated.

No. 467·2 Plate 2 / 9
No. 467·3 Plate 3 / 9
No. 467·4 Plate 4 / 9
No. 467·5 Plate 5 / 9
No. 467·6 Plate 6 / 9
No. 467·7 Plate 7 / 9
No. 467·8 Plate 8 / 9
No. 467·9 Plate 9 / 9

DUPLAIN – La Chaux-de-Fonds – ETA/Valjoux caliber 7751, full calendar with moon phases automatic chronograph watch.

The case diameter is ca. 38 mm (not including the crown and the pushers), in stainless steel, with a see-thru case-back showcasing the oeil-de-perdrix decorated 7751 movement with blue screws.

The dark blue dial has silver baton indexes Arabic numerals, silver hands and white accents.

Small seconds and 24 hours time counter at 9:00, 12 hours counter with moon phases indication at 6:00, 30 minutes counter and day/month indicator at 12:00 (in French). Central seconds hand and central date hand.

Gray textile-over-leather strap (aftermarket) with ardillon buckle.

Description:

Automatic chronograph
Escapement: stone lever
Yoke winding system
Stop mechanism: Cam switching
Glucydur balance wheel
Nivaflex mainspring
Incabloc shock protection

Functions:

Small seconds
1/8-seconds counter, 30-minutes counter, 12-hours counter
Date: hands, quickset date feature
Hacking seconds
Complications: 24-hours indication, day: quickset date feature, moon phase: rapid advance

Data:

25 jewels
28,800 A/h
Power reserve 46h

No box or papers.

The watch is working and keeping a pretty precise time, but as for any other used or vintage watch, a basic revision is recommended.

The article is for sale AS IS – any other parts that are not mentioned in the description, or not visible in the photos, are not included with this item.


Most of the watches that I am selling are liquidation or collector items, therefor I make no claims and give no warranty regarding continual accuracy of time keeping. Used, antique or vintage watches may need servicing, even if they are in good running condition. Unless otherwise stated they may need to be cleaned, oiled, adjusted or timed. I cannot guarantee a used watch to be waterproof or water resistant.

No. 03 / On record

Reference DUPAUT7751 chronoshop SKU
Catalogued 15 January 2026 Photographed · graded · published
Last revised 1 May 2026 Description or pricing updated
On hand Single specimen Ships from Geneva

DUPLAIN – Swiss Made Chronograph Automatic Moon-Phases Calendar Watch. Awaiting the bench it deserves.

Enquire about this specimen Or open a trade enquiry · net pricing on application