A Schild As1702 03

A. Schild Caliber AS 1702/03

A Schild As1702 03

Manufacturer A. Schild S.A.
Caliber Number 1702/03
Movement Type Mechanical, manual-wind
Lignes 11.5”’
3.8mm or 4mm (1703 date)
Jewels 17 or 21
Vibrations Per Hour 18,800 vph
Lift Angle 52 degrees
Power Reserve ~50 hours
Shock Absorber Incabloc
Hands Count
Hand Sizes
1.50mm / .90mm / .21mm
Functions Central hours; central minutes; central sweeping seconds
Country of Manufacture Switzerland, Swiss made
Known Models
(Add yours to comments below…)

The caliber AS 1702/03 (AS 1702 / AS 1703) is a vintage manual-manual wind watch movement. This mechanism is part of the A. Schild 17XX family of movements and was sold as an ébauche or unfinished movement. It was produced in Switzerland by Fabrique D’Ebauches A. Schild S.A. aka ASSA.

At one point in time, A. Schild S.A. was one of the largest Swiss movement houses. The company merged with ETA in the late 1970’s as a result of the quartz crisis.

Watch Brands Using This Movement:

As an ebauche, the AS1702/03 was used by many watch brands in the 60s and 70s. Some of the brands would not be recognizable today (the way some microbrands will be unheard of in the future), but others are well-known to this day.

Known watch brands that have used this caliber include but are not limited to EDOX, Rotary, Titoni, Tugaris, Siduna, Olma, RADO, Elgin, Mondia, etc.

Are there any not listed? Add it in the comments below…

AS 1702 VS AS 1703:

There could be some caliber confusion due to the caliber number sharing many of the same parts. “AS 1702/03” refers to AS 1702 and AS 1703.

The main difference is that the AS 1703 has a calendar complication with a date at 3:00. It is not a quickset date, so the method of advancing the datewheel is to set the hands past 12am then back to 8pm… past 12am, then back to 8pm and so on.

The no-date AS 1702 is a true no-date without a phantom date position.

Both variations feature AS 1702/03 engraved under the balance wheel. The way to determine which you have to whether or not it has a date.

Additional Resource:

Image credit: werk24watches on eBay / Item #143772573080

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