I’m not quite sure when The Saint-Imier based Moeris watch factory started manufacturing their 13″ calibre, but its essentially a miniature versions off their high grade pocket watch calibre 19 introduced in 1935.
Moeris calibre: 13″
- Made from approx 1945
- Made in Switzerland
- Power reserve around: 46h
- 15-21 Jewels
- 18000 B/A
- Lift angle 52
- DM 29.33mm
- H 4.1mm
Gear train bridges have a decent finish with nice beveled edges. Decoration varies on the basic model to the “Excellence” top of the line.
Top surface finish on bridges: 8 Points
Surface finish on screws: 10 Points
Surface finish on ratchet and crown wheel: 7-8 Points*
Movement Jeweling: 6-8 Points*
Movement design innovation (1945): 6 points
The Moeris base plate is nicely finished. Standard winding and setting mechanism.
Base plate finish: 6-7 Points*
Setting and winding mechanism: 7 Points
Gear-train finish: 8 Points
Movement durability: 8 Points
Inca shock protection
+3 Bonus points.*
+2 bonus points for micro regulator.*
Nice robust design with a steel wear plate for the ratchet wheel. Very nice machined click spring +2 bonus points.
The Moeris has good accuracy.
Accuracy: 8 points
Fairly good reserve of 46 hours
Power reserve: 8 points
Moeris 13″ points summary:
Surface finish on bridges and top side of base plate: 8
Surface finish screws: 10
Surface finish on ratchet and ratchet wheel: 7-8
Movement Jeweling: 6-8
Movement innovative design for ca 1940: 6
Base plate finish: 6-7
Setting and winding mechanism: 7
Gear-train finish: 8
Movement durability: 8
Total bonus points: 2-7
Accuracy: 8
Power reserve: 8
Grand total: 84-93
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