For the W100 movement in this watch the crown is not wound to get it going. With some gentle circular shakes the seconds hand will fire right up and it'll run strong while on the wrist. The longer it's worn the better the power reserve will be. While the movement keeps accurate time and both the day and date wheels roll over automatically as they should, given that this watch is approximately 45 years old and considering that the movement shows no visible signs of ever having been serviced a complete overhaul is recommended. This rarely seen Wittnauer day-date diver has a refreshingly orange "JAPAN" stamped dial that is in pristine condition, free of any scratching, tool marks, chipping or defects.
The original lume, which remains fully intact and no longer glows after being exposed to bright light, has aged to a perfectly matching rich butterscotch hue. In my humble opinion this watch looks markedly better in person than in the pictures. The vibrant orange acrylic bezel, which does not rotate likely due to gunk buildup underneath, looks great. The heavy duty all stainless steel case is in excellent condition showing minor wear, no visibly noticeable dents or dings and is free of oxidation.
The outside of the case back is stamped "STAINLESS STEEL" while the inside of the case back is stamped WITTNAUER WATCH CO. " followed by "BRITISH CROWN COLONY, HONG KONG, STAINLESS STEEL" and "1002-W100.The 17 jewels unadjusted Japan WITTNAUER WATCH CO. The quickset date function works flawlessly by pulling out the sharply threaded, non-screwdown "W" signed crown to the first position and then turning it counterclockwise until the desired date has been reached.
For this particular movement the crown is not wound to get it going. With some gentle circular shakes the seconds hand will fire right up and the longer the watch is worn the better the power reserve will be. Given that this watch is approximately 45 years old and considering that the movement shows no signs of ever having been serviced (there are no visible watchmaker service markings on the inside of the case back or on the movement), a complete overhaul is recommended. This watch measures approximately 36 mm excluding the crown, approximately 39 mm including the crown and approximately 18 mm between the lugs.
Case thickness, measured from the bottom of the case back to the top of the bezel, is approximately 9.5 mm. Including the crystal thickness measures approximately 10.5 mm. Although the movement runs strong and keeps accurate time when being worn, considering that it has likely never been serviced a complete overhaul is recommended. As such there are no warranties, express or implied, attached with the sale of this watch. Vintage means old and while my personal belief is that old-school means better quality and workmanship, things can and do go wrong from time to time.
Any servicing costs going forward are your responsibility. And please study the 12 high magnification pictures carefully, which were taken in natural light and from various angles, as they are part of the description and serve as an accurate representation of the condition of this watch.
The item "Vintage Wittnauer Day-Date Diver withPristine Dial, Patina, All SS Case, Signed Crown" is in sale since Thursday, July 16, 2020. This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Watches\Wristwatches". The seller is "savethetreestoday" and is located in Issaquah, Washington.
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