Seiko V657 Parts Catalog - Page 1

PARTS CATALOGUE / TECHNICAL GUIDE Cal. V657A (SPECIFICATIONS) Item -.._________ Cal. No am Movement V657A v., Ire. Pa. •••• reel • ' °:.. n it. 04 (). 0 z- o • 0 e . Al Outside diameter Movement size Casing diameter Height Time indication Driving system Additional mechanism Loss/gain Regulation system Measuring gate by quartz tester Battery Jewels (X 1.0) 029.5 mm 26.0 mm between 3 o'clock and 9 o'clock sides 028.8 mm 3.7 mm • Three hands (hour, minute and second) • Chronograph hands (minute, second and 1/10 second) • Date calendar Step motor (3 pcs.) • Stopwatch function • Measures up to 60 minutes in 1/10 second increments • Split time measurement •Date Lalandar • Instant setting device for date calendar • Train wheel setting device • Electronic circuit reset switch • Demonstration movement of the hands Monthly rate at normal temperature range: less than 20 seconds Nil Any gate can be used. SEIKO SR920SW, Maxell SR920SW, Sony SR920SW, Eveready 371, Matsushita SR920SW Battery life is approximately 2 years. Voltage: 1.65V 0 jewel SEIKO CORPORATION 1 PARTS CATALOGUE Disassembling procedure Figs. Reassembling procedure Figs. Lubricating: Types of oil S Moebius A Moebius V 0 Oil quantity Normal quantity Cal. V657A Hour, minute and second hands 15 0888 006 Chronograph second wheel -- 18 0885 357 Intermediate chronograph second wheel 17 0888 002 Intermediate chronograph minute wheel and pinion (B) 18 0902 006 Chronograph minute wheel 19 0886 001 0In8termediate chronograph minute wheel and pinion (A) 7rt,4 4 Chronograph minute, second and 1/10 second hands Dial 4 0012 066 Auxiliary train wheel bridge screw 0808 368 Date dial guard Date dial 0128 368 Auxiliary train wheel bridge 8 0806 368 Date corrector wheel O 0810 368 Dale jumper 0) 0802 388 Date driving wheel 0817 388 Intermediate date driving wheel 0836 368 Intermediate wheel for date corrector holder 13 0737 891 Intermediate wheel for date corrector (C) 14 0962 891 Intermediate wheel fur date corrector (B) 20 0885 357 Intermediate chronograph second wheel 21 0888 006 Chronograph second wheel v,p.) Hour wheel 0 [---> Please see the remarks on the following pages. 2