Manufacturer | A. Schild S.A. |
Caliber Number | 1726 / 1727 |
Movement Type | Mechanical, manual-wind |
Vibrations Per Hour | 21,600 vph |
Jewels | 17 |
Power Reserve | 38 hours |
Diameter | 8 3/4”’ / 19.4mm (please confirm in the comments below) |
Height | 3.55mm |
Lift Angle | 52 degrees |
Hands | 1.20, 0.65, 0.18 |
Hairspring | ZF1298 |
Shock Absorber | Incabloc |
Hacking? | Yes |
Balance | Screw balance |
Functions | Hours, minutes, small seconds |
Country of Manufacture | Switzerland |
Known Models | (add yours to comments below) |
The caliber AS 1726 was produced in Switzerland by Fabrique D’Ebauches A. Schild S.A. aka ASSA. This mechanism was produced as an ébauche, or unfinished movement.
Until about 1850, the watchmaker’s ébauche consisted of two plates with pillars and bars, the barrel, fusée, index, pawl and ratchet-wheel, along with a few assembling screws. These parts were all roughly filed and milled. The steel and brass were manufactured in a special workshop. The ébauche was finished by watchmakers in a finishing shop. The assortiment (literally “assortment” in English) are the parts of a watch other than the ébauche, in particular the regulating organs and include the balance, hairspring or spiral, escape wheel, anchor lever and pallet stones or jewels. The modern ébauche is a jeweled watch movement, without its regulating organs, mainspring, dial, or hands. –Wikipedia
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.
Although the caliber 1726 is more common, there is a caliber 1727 which is essentially the same movement but with a bevelled edge, offering a more finished look.
Also see this Longines caliber 18 L based off an AS 1726.
Trending Comments
Longines Caliber L836.6
The differenece is the beat rate. 3Hz vs 5Hz. 6 beats/s vs 10 beats/s.
Orient Caliber F6922
I've had my Mako and Ray Orient watches with these calibers, I guess. Their performance…
Invicta Caliber JSD-006ZY
Apart from the fact, that there is no further information about this caliber anywhere, it…
Seiko Instruments (SII) Caliber VH31
the VH-31 movement coupled with solar or kinetic in a Seiko watch would sell like…
Miyota/Citizen Caliber 9051
I have the 9051 in my Fujitsubo, it appears to be within 3 seconds. I'll…
Active Caliber Listings
It might be a Chinese Standart-movement aka Tong Ji aka 7120 / SS7 with an…
Thank you for sharing your experience with the community. If possible, please submit images of…
Apart from the fact, that there is no further information about this caliber anywhere, it…
This £80 lorus has the y676c with Japan on the rotor
Minute hand on some ETA's 2-hand quartz movements run every 20 secs so that the…