Related Manuals for Epson Analog Quartz YM91A
Summary of Contents for Epson Analog Quartz YM91A
- Page 1 Watch Movement Specification and Drawing CHRONOGRAPH Cal. YM91A Movement Size 12’’’ Casing Diameter Ø 27.0mm Height 3.70mm Battery Life 5 years...
- Page 2 Date: 22/Aug./'23 Cal. YM91A Items Rev. Page Specifications Appearance Casing Hand fitting Hand setting stem Dial-01 6-01 Dial-02 6-02 Dial-03 6-03 Dial-04 6-04 Holding ring for dial Attention for assembly Attention of casing part structure Operation-01 10-01 Operation-02 10-02...
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Page 3: Specifications
22/Aug./'23 Date : Cal. YM91A Specifications Rev. : 05 Analog Quartz 12''' Center second Chronograph Movement 1. MOVEMENT DIMENSIONS φ27.60mm(12H-6H) × 24.00mm(3H-9H) Outside diameter φ27.00mm(12H-6H) Casing diameter Total height 3.7mm (including battery) 2. TIME STANDARD Type of quartz oscillator Tuning fork Frequency of quartz oscillator 32,768 Hz ±20 seconds per month (on wrist) - Page 13 15/Dec./'17 Date : Cal. YM91A Attention for assembly Rev. : 03 1.How to replace the battery ・ Please use the specified battery to keep the stable performance for a long time. ・ Please install the minus part of the battery towards inside of the watch. ・...
- Page 14 31/Jul./'14 Date : Cal. YM91A Attention of casing part structure Rev. : 02 1.Minute hand The center wheel have a safety stopper structure to prevent the minute hand from being pressed too much. However pay attention to the contact between hour hand and minute hand. 2.Holding ring for dial Use the specified holding ring for dial to prevent rotation of the movement inside of the case in order to stabilize the button operation.
- Page 15 Date : 31/Jul./'14 Cal. YM91A Operation-01 Rev. : 02 1/5 second chronograph hand Minute chronograph hand Hour hand Minute hand 2H button 0 ® 1 ® 2 Crown Small second hand 4H button Crown position 2nd click 0 click 1st click Turn clockwise for date Time setting Crown...
- Page 16 Date : 31/Jul./'14 Cal. YM91A Operation-02 Rev. : 01 Chronograph function ・ The chronograph can measure up to 60 minutes in 1/5 second increments, capable of timing 12 hours. ・ When the measurement reaches 12 hours, the chronograph automatically stops counting. Standard measurement 2H button 2H button...
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