: You get the aesthetic "sweep" of an automatic with the accuracy of quartz—typically ±15 seconds per month .
: It typically runs for about 2 years on a standard SR920SW battery. Specific Watch Models If you are referring to a specific watch model number:
Seiko Instruments (SII) VH31 / VH31A watch movement | Caliber Corner
: You get the aesthetic "sweep" of an automatic with the accuracy of quartz—typically ±15 seconds per month .
: It typically runs for about 2 years on a standard SR920SW battery. Specific Watch Models If you are referring to a specific watch model number:
Seiko Instruments (SII) VH31 / VH31A watch movement | Caliber Corner