Seiko - SBDB007 PROSPEX Land Master Spring Drive MIURA EVEREST 2013

Seiko - SBDB007 PROSPEX Land Master Spring Drive MIURA EVEREST 2013 Limited Edition  NEW

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Yuichiro Miura
 It was born in adventurer, professional skier 1932. Participation first to '64 Italy flying kilometer as a Japanese, the then world record establishment. '66 Mount Fuji straight descent. I accomplish the Mount Everest .8000m world summit level ski downhill in '70, and the documentary film wins Academy Award. I completely achieve the ski downhill of seven continent highest peaks of the world in '85. In 2003, world's highest mountain Mount Everest (8,848m) reaches the summit with 豪太 of the second son. I establish a record of the climbing with the then world's best age climbing (70 years old) at the first Japaneses same time. In May, '08, I make 75 years old and aim at Mount Everest at the second Mount Everest climbing success, 80 years old of next year again.

Spring Drive is the only watch whose hands' motion reflects the true nature of time.

Spring Drive is the summit of watchmaking mechatronics achieved by SEIKO's technology and heritage, and hand assembly is done by our most skilled craftsmen in Japan.

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The genius of Spring Drive

    Long power reserve : 72 hours
    Fast winding : approximately 30% improved compared to the most traditional mechanical winding system.
    High accuracy : Equivalent to ± 1 second/day
    Glide motion hands : the only watch whose hands' motion reflects the true nature of time

SPECIFICATIONS Calibre

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Mechanism of Spring Drive

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How it works

It carries technical crystal which was full of true utility and functionality, spring drive Cal 5R66
 
While "the spring drive" does power a spring winds it up, and to be removed with the only power source; is equal to a quartz clock; is highly precise: It is the SEIKO original transport which realized +-15 moon difference seconds (+-1 day difference second equivalency). It was a rolling by hand type, but I made a self-winding watch (with the rolling by hand) in 2004 and I rolled it up very much and improved it at continuation time at time at the time of 1999 when SEIKO commercialized this mechanism for the first time in the world.


5R66 evolves a self-winding watch spring drive more and I add 24 hour hand and carry function (※) in GMT. Because the spring drive does not have a weak temp for the special shock of the mechanical clock, I am superior in impact resistance while being the drive with the spring same as a mechanical clock. In addition, we do not have to worry about the running out of battery as far as I attach it to an arm because I do not use a battery at all and use it and drive it by energy clean at all. I am suitable for the use in foreign countries by a function in GMT by 24 hour hand. In addition, 24 hour hand can conjugate as a direction meter and can confirm a direction at a position of the sun.
※It is with an interlocking movement-style difference in time correction mechanism on a date, and independent difference in time is correctable. The time of two countries with the difference in time is in this way legible.

    Source of energy:
    The sole motive power is the main spring.
    Transmission:
    The power of the mainspring is trans mitted via gear train to the hands and to the Tri-synchro regulator.
    Regulation:
    The Tri-synchro regulator controls the speed of the glide wheel and the hands by electromagnetic braking.

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Product explanation

    It is the ultimate spring drive model that combines "tell the correct time" and "not stop" and "not get in the way" to withstand climbing Everest.

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TECHNICAL SPECIFICATIONS

Drive system        Spring Drive
Calibre                5R66
Case material      Pure titanium (Hard coatings)
Band material     Pure titanium (Hard coatings)
Glass material     Sapphire glass (Super clear coating)
Accuracy             ±15 seconds per month
Waterproof         10 atmospheres water resistant
Other function    
LumiBrite (needle , index)
Antimagnetic (JIS1)
One-touch 3-fold buckle
Screw lock type crown
Double-lock clasp
30 Jewel
24 Hour hand (Dual time display , GMT indication-able)
Power reserve indicator
Calendar-linked time difference correction function
Second hand stop function
Case back with serial number
Accompanying items    
Special BOX
Nylon band
Case size    
Wide : 46.8 mm
Depth : 14.2 mm

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