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Very rare antique 24h dial GMT World Time Swiss pocket watch c1900's.Cortebert
Estimated price for orientation: 2 630 $
Category: Antique
Class:
Description Condition: Pre-owned: An item that has been used or worn previously. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab ... Read moreabout the condition
DescriptionDear customers,I am happy to offer directly from my private collection this Very rare antique 24h dial GMT World Time Swiss pocket watch,attributed to Cortebert c1900's.
There is a special sub dial which rotates to show the time in 24 different cities in all GMT time zones.
The watch is pre set to +2h GMT(for the Bulgarian time zone.Upon request we can set to any requested time zone)
Perfect working order. A real 24 hour dial watch only has 24 hour dial notation on the dial. That means that the movement has to be altered so that the hour hand doesn't go in 360 degrees around the dial in 12 hours, but rather in 24 hours. The hour hand, in my example, would only show 1900 hours. You'd know for sure that it was early evening.
Conventional 12 hour watches have a "motion work" involving a 12 to 1 reduction in the gear train from the minute hand. 24 hour watches have a different gearing, with a 24 to 1 reduction. To be very technical, "the motion work is the small 12-to-1 (or here a 24-to-1) reduction gear train that turns the timepiece's hour hand from the minute hand. It is attached to the going train by the friction coupling of the cannon pinion, so the minute and hour hands can be turned independently to set the timepiece. It is often located on the outside of the movement's front plate, just under the dial. If you are not satisfied in any way-money back guarantee. The watch comes with CERTIFICATE OF AUTHENTICITY. If you are not satisfied in any way-money back guarantee. Free shipping to worldwide. The watch comes with CERTIFICATE OF AUTHENTICITY!
I am an eBay member c1999 with flawless reputation,so buy with confidence. If you are not satisfied in 100%,your money back guarantee. Free shipping to worldwide,fully insured (possible by DHL overnight courier)
Description
| Condition: | Pre-owned: An item that has been used or worn previously. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab ... Read moreabout the condition |
DescriptionDear customers,I am happy to offer directly from my private collection this Very rare antique 24h dial GMT World Time Swiss pocket watch,attributed to Cortebert c1900's.
There is a special sub dial which rotates to show the time in 24 different cities in all GMT time zones.
The watch is pre set to +2h GMT(for the Bulgarian time zone.Upon request we can set to any requested time zone)
Perfect working order.
I am an eBay member c1999 with flawless reputation,so buy with confidence. If you are not satisfied in 100%,your money back guarantee. Free shipping to worldwide,fully insured (possible by DHL overnight courier)
There is a special sub dial which rotates to show the time in 24 different cities in all GMT time zones.
The watch is pre set to +2h GMT(for the Bulgarian time zone.Upon request we can set to any requested time zone)
Perfect working order.
A real 24 hour dial watch only has 24 hour dial notation on the dial. That means that the movement has to be altered so that the hour hand doesn't go in 360 degrees around the dial in 12 hours, but rather in 24 hours. The hour hand, in my example, would only show 1900 hours. You'd know for sure that it was early evening.
Conventional 12 hour watches have a "motion work" involving a 12 to 1 reduction in the gear train from the minute hand. 24 hour watches have a different gearing, with a 24 to 1 reduction. To be very technical, "the motion work is the small 12-to-1 (or here a 24-to-1) reduction gear train that turns the timepiece's hour hand from the minute hand. It is attached to the going train by the friction coupling of the cannon pinion, so the minute and hour hands can be turned independently to set the timepiece. It is often located on the outside of the movement's front plate, just under the dial. If you are not satisfied in any way-money back guarantee.
The watch comes with CERTIFICATE OF AUTHENTICITY. If you are not satisfied in any way-money back guarantee. Free shipping to worldwide. The watch comes with CERTIFICATE OF AUTHENTICITY!Conventional 12 hour watches have a "motion work" involving a 12 to 1 reduction in the gear train from the minute hand. 24 hour watches have a different gearing, with a 24 to 1 reduction. To be very technical, "the motion work is the small 12-to-1 (or here a 24-to-1) reduction gear train that turns the timepiece's hour hand from the minute hand. It is attached to the going train by the friction coupling of the cannon pinion, so the minute and hour hands can be turned independently to set the timepiece. It is often located on the outside of the movement's front plate, just under the dial. If you are not satisfied in any way-money back guarantee.
I am an eBay member c1999 with flawless reputation,so buy with confidence. If you are not satisfied in 100%,your money back guarantee. Free shipping to worldwide,fully insured (possible by DHL overnight courier)