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--- arnold_son_dbg_equation_gmt [02.12.2022 20:42] – created - external edit 127.0.0.1
+++ arnold_son_dbg_equation_gmt [26.04.2023 08:09] (current) – gerdlothar
@@ Line 1: / Line 1: @@
+====== Arnold & Son DBG Equation GMT ======
+{{wst>image_cr|Arnold & Son|DBG Equation GMT}}
+**DBG Equation GMT** is a wristwatch by [[Arnold & Son]].
+The DBG is part of the // Instrument Collection // of Arnold & Son, which is inspired by timepieces from the second creative period of the legendary watchmaker [[John Arnold]].
+A masterpiece of perfect symmetry, the Instrument DBG Equation GMT features two separate time displays, each driven by its own barrel and gear train with its own escapement and balance. This highly unusual technical specification permits the two displays to be set independently of each other. Although it is a standard feature of watches displaying two or more time zones for the hour hands to be set to different times, being able to set the minute hand as well opens up other possibilities. It means, for instance, that the display can be set to show the precise time in zones that differ from Greenwich Mean Time by a fraction of an hour, such as a quarter or a half. In addition, a subdial at 12 o'clock shows the equation of the two time zones on a 24-hour basis. This enables the wearer to see the time difference between the two zones and also to ascertain whether it is day or night in the second zone. Both time zones share a common permanent seconds in the shape of the long slender hand emanating from the centre of the dial, which is a hallmark feature of the new Arnold & Son's Instrument collection.
+//Using a text of Arnold & Son//
+<WRAP ud ud_mod>
+**Reference:**
+  * 1DGAP.W01A.C120P (18 ct rose gold)
+  * 1DGAS.S01A.C121S (stainless steel)
+**Movement:**
+  * Exclusive mechanical movement by Arnold & Son [[A&S 1209]], manual winding, 21,600 A/h
+  * Double [[balance wheel]]
+  * Double [[barrel]]
+  * [[Nickel silver]], [[rhodinated]]
+  * Haute Horlogerie finishing manually [[chamfered]] [[bridge]]s and polished edges, fine circular graining and [[Côtes de Genève]], [[blued]] screws
+  * 42 [[jewels]]
+  * 40 hours [[power reserve]]
+**Case:**
+  * 18 ct [[rose gold]] or [[stainless steel]]
+  * Ø 44 mm, H 9,89 mm
+  * Domed [[sapphire crystal]], [[antireflective]] on both sides
+  * Transparent caseback in [[sapphire crystal]]
+  * [[Waterproof]] to 3 atm
+**Dial:**
+  * Silvery-white and silvery opaline
+**Functions:**
+  * Hours, minutes, [[GMT]] hours and minutes
+**Bracelet:**
+  * Hand-stitched brown alligator leather
+</WRAP>
+{{tag>Watch_models Arnold_&_Son_models}}