Thank you very much for choosing a Grand Seiko watch.
For proper and safe use of your Grand Seiko watch, please
read the instructions carefully in this booklet before using it.
Keep this manual handy for easy reference.
Bracelet sizing is available at the retailer from whom the watch was purchased. If you cannot
have your watch band sized by the retailer from whom the watch was purchased because you
received the watch as a gift, or you moved to a distant place, please contact Grand Seiko
international service network mentioned on CERTIFICATE OF GUARANTEE or our website.
The service may also be available on a chargeable basis at other retailers, however, some
retailers may not undertake the service.
If your watch has a protective film for preventing scratches, make sure to peel it off before using
the watch. If the watch is used with the film on it, dirt, sweat, dust, or moisture may be attached
to the film and may cause rust.
CONTENTS
■ INTRODUCTION
- Spring drive watch –
................................................................... 2
• History of Spring Drive ....................................................................................... 3
• Spring Drive Mechanism ................................................................................... 4
• Differences between the Spring Drive and mechanical watch ........................... 7
■ HANDLING CAUTIONS ....................................................................................... 8
■ CHECK THE CALIBER NUMBER AND WATER-RESISTANT LEVEL ............... 9
■ CAUTIONS ON WATER RESISTANCE ............................................................ 10
■ NAMES OF THE PARTS .................................................................................... 14
■ HOW TO USE ..................................................................................................... 15
• Crown .............................................................................................................. 15
• Power reserve indicator ................................................................................... 16
• HOW TO USE ................................................................................................. 17
■ FUNCTIONS OF DIVER’S MODEL .................................................................... 19
• Unidirectional rotating bezel ............................................................................ 19
• Slide adjuster ................................................................................................... 20
■ TO PRESERVE THE QUALITY OF YOUR WATCH .......................................... 21
• After-sale service ............................................................................................. 21
• Guarantee ....................................................................................................... 22
• Daily care ........................................................................................................ 23
• Band ................................................................................................................ 24
• Magnetic resistance (Magnetic influence) ....................................................... 25
• Lumibrite ......................................................................................................... 26
• Troubleshooting .............................................................................................. 27
■ SPECIFICATIONS (Movement) ........................................................................ 28
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