Seiko 8L45 Instructions Manual
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Seiko 8L45 Instructions Manual

Seiko 8L45 Instructions Manual

Diver's watch for saturation diving
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8L45
Thank you very much for choosing a SEIKO watch.
For proper and safe use of your SEIKO watch,
please read carefully the instructions in this
booklet before using it.
* Length adjustment service for metallic bands is available at the retailer from
whom the watch was purchased. If you cannot have your watch repaired 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 SEIKO
CUSTOMER SERVICE CENTER. 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.
1
EN
2505
Make sure to read the following instructions before use and strictly observe them.
b WARNING
When diving, never carry out operations other than those specified in this instruction manual. Mishandling
of the product and misunderstanding of the displayed content may lead to a fatal or serious accident.
b WARNING
The diver's watch is an auxiliary instrument which mainly displays the passage of time and does not ensure
the safety of a user. Use this watch while using the equipment (residual pressure gauge, water depth meter,
etc.) required for safe diving.
b WARNING
This watch supports usage in saturation diving. Ensure you have the skills and experience necessary for
saturation diving; that you have fully familiarized yourself with watch operation and handling; and that you
check the watch each time before diving. If these items have not been confirmed, then do not carry out
saturation diving using this watch.
DIVER'S WATCH FOR SATURATION DIVING
b WARNING
8L45
INSTRUCTIONS
2
EN

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Summary of Contents for Seiko 8L45

  • Page 1 SEIKO b WARNING CUSTOMER SERVICE CENTER. The service may also be available on a This watch supports usage in saturation diving.

  • Page 2: Table Of Contents

    ○ If the watch body or band becomes edged by corrosion etc. electricity ○ If the pins protrude from the band. * Immediately consult the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE If you observe any allergic symptoms or skin irritation CENTER.

  • Page 3: How To Use

    (The bezel rotation must not be b CAUTION too loose or too tight.) * “How to use the rotating bezel” → P.24 If there are any malfunctions, contact the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE CENTER.

  • Page 4: While Diving

    * If you find that the setscrews have become loose or are functioning abnormally, consult the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE CENTER. * The above illustration is provided as an example, therefore it may not be exactly the same as your watch.

  • Page 5: Mechanical Watch Characteristics (Hand-Wound, Auto-Wound)

    Mechanical watch characteristics (Hand-wound, auto-wound) Names of the parts and their functions • This is a mechanical watch powered by a spring. 1 Minute hand • To use it from a stopped state, turn the crown 20 turns by hand to wind up the spring before starting the 2 Hour hand watch.

  • Page 6: How To Set The Time And Date

    How to set the time and date * If the watch is used without being wound up fully, gain or loss of time may result. To avoid this, wear the watch for more than 10 hours a day. If the watch is used without being worn on the wrist, be sure to wind it up fully every day at a fixed time.

  • Page 7: Date Adjustment At The End Of The Month

    ■ Date adjustment at the end of the month How to use the rotating bezel It is necessary to adjust the date at the end of February and 30-day months. By setting the rotating bezel beforehand, the elapsed time since the start of an event can be measured. Ex.) To adjust the date in the A.M.

  • Page 8: Performance And Type

    Performance and type Lumibrite The case back shows the caliber and performance of your watch If your watch has Lumibrite Lumibrite is a luminous paint that absorbs the light energy of sunlight and lighting apparatuses in a short time and stores it to emit light in the dark. For example, if exposed to a light of more than 500 lux for Water resistant performance approximately 10 minutes, Lumibrite can emit light for 3 to 5 hours.

  • Page 9: Band

    ● Polyurethane band Band • A polyurethane band is susceptible to discoloration from light, and may be deteriorated by solvent or atmospheric humidity. The band touches the skin directly and becomes dirty with sweat or dust. Therefore, lack of care •...

  • Page 10: How To Use The Diver Extender

    How to use the diver extender While pressing the push Clasp button, lift up the clasp to Push button release the buckle, and place If your watch’s metallic band has the Diver Extender function, the length of the band can be easily the watch on your wrist.

  • Page 11: After Sales Service

    Inspection and adjustment by disassembly and cleaning (overhaul) should be performed by the retailer from whom the watch was purchased, and who specifies “SEIKO GENUINE PARTS”. At this time, also • Please keep in mind that if original parts are not available, they may be replaced with substitutes whose request replacement of the gasket and the spring bar.

  • Page 12: Accuracy Of Mechanical Watches

    Accuracy of mechanical watches ○ Mainspring wound condition and accuracy In order to improve accuracy, it is important to regularly supply energy to the balance that controls the speed of the gears. The driving force of the mainspring that powers mechanical watches varies between when ○...

  • Page 13: Specifications

    Specifications Cal. 8L45 1. Features 3 hands (hour, minute, second), date display 2. Vibrations per hour 28,800 vibrations/hour (8 vibrations/sec) 3. Loss/gain (daily rate) Daily rate +10 sec. to -5 sec. Only if worn on the wrist in a temperature range of 5°C to 35°C 4.

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