Sinn – 240 St GZ Dark Blue Dial Steel 43 mm

Sinn Spezialuhren – 240 St GZ Dark Blue Dial Automatic Steel 43 mm


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A sporty watch with interior tide bezel.

Anyone who is at home on the world’s seas – either as a skilled sailor or a keen water sports enthusiast – knows how important it is to keep an eye on the weather.

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The tides are often just as important because they go a long way towards determining how things pan out.

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•    Case made of stainless steel, bead-blasted
•    Interior tide bezel
•    Sapphire crystal glass
•    Dark blue dial
•    Pressure-resistant to 10 bar
•    Low pressure resistant

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Whichever port you’re heading for, it is crucial to take a close look at the local tide table to work out the current tidal range. It is just as essential to keep checking your watch – especially if it features an interior tide bezel like the 240 St GZ.

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The rotating tide bezel can be used to read the relative water level of a location in terms of current tide, i.e. the time until the next high tide.

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All you need to know is the time of the last high tide and correlate this with the triangular mark ‘HW 1’ on the rotating bezel. This can be taken for example from a tide table or tide calendar.

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The hour hand can then be used to read off the current water level on the rotating tide bezel of the 240 St GZ. You can also read off the expected relative water levels for any given time up until the time of the next high tide, which is then shown at the position ‘HW 2’.

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Technical details

Other Versions:

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Mechanical Movement
•    Calibre Sellita SW 220-1
•    Self-winding mechanism
•    26 bearing jewels
•    28,800 semi-oscillations per hour
•    Hand adjustment with seconds stop function
•    Shock resistant as per DIN 8308
•    Anti-magnetic as per DIN 8309
Case
•    Case made of stainless steel, bead-blasted
•    Sapphire crystal glass in front, anti-reflective on both sides
•    Case back screw-fastened
•    Meet the technical requirements for waterproofness, as set out in standard DIN 8310
•    Pressure-resistant up to 10 bar
•    Low pressure resistant
Functions
•    Hours, minutes, seconds
•    Date date
•    Day of the week display
•    Interior tide bezel
SINN Technologies
• Crowns with D3-System
Dimensions and Weight
•    Case diameter 43 mm
•    Band lug width: 22 mm
•    Case thickness: 11 mm
•    Weight without strap: 85 gramme
Dial and Hands
•    Dark blue dial
•    Indices coated with luminescent colour
•    Hour- and minute hand coated with luminescent colour
•    Marks on tide bezel with luminescent colour

Warranty • 2 years

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SINN  SPEZIALUHREN  GMBH
Im Füldchen 5–7 • 60489 Frankfurt am Main
• Tel. +49 (0)69 / 97 84 14-0
• Fax +49 (0)69 / 97 84 14-201
• info@sinn.de
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ARNOLD & SON – DBG Skeleton Gold Edition

ARNOLD & SON – Instrument DBG Skeleton Rose Gold 44 mm Limited Edition

Instrument Collection
BASELWORLD 2017

A contemporary and open interpretation of a unique 

Dual-Time (GMT) watch: the DBG Skeleton.

Arnold & Son unveils a new rendition of its unique DBG dual-time (GMT) timepiece, the DBG Skeleton. An acronym for “double balance” and “GMT”, the DBG Skeleton – a part of the Instrument Collection – references the precise chronometers built by John Arnold and his son. With a new skeletonized execution, the DBG Skeleton showcases Arnold & Son’s watchmaking prowess as well as attention to aesthetic details with the newly developed manufacture A&S1309 calibre, which has been conceived, designed and manufactured entirely in-house.

Skeleton clocks and watches have been popular for centuries. The painstaking process of skeletonization involves reducing the framework – the plates, bridges and bars, as well as the dial – and the mechanical parts – mainly the wheel train – to a minimum by removing metal that is not a functional or structural requirement. The result is an unimpeded view of the watch’s inner workings and its many parts. In the case of DBG Skeleton, it reveals exquisite artistic detail, from the blued screws to the Côtes de Genève stripes and satin finish running across the bridges and edges of the dial.

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A masterpiece of perfect symmetry, the DBG Skeleton features two separate time displays, each driven by its own barrel and gear train with its own escapement and balance, now entirely visible thanks to its openworked execution. 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.

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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.

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Watches with a double barrel and escapement have a tradition going back many years in horology but are rarely found today. Historically referred to as a “captain’s watch”, the principle is ideally suited to the Arnold & Son’s instrument line because a separate barrel/gear train and balance/escapement enable the watch to house different complications without having one influencing the accuracy of the other by draining its energy. It is therefore perfectly adapted to be used for a second time zone, as in the DBG Skeleton.

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No less impressive than the watch’s technical features is its aesthetic appeal, and in particular its symmetry, which is largely determined by the positioning of the elements in the dual movement, visible from both sides of the watch. The entire movement was designed so as to enhance its visual appeal when skeletonized.

The view from the back reveals a pleasingly balanced arrangement of open bridges, barrels and gear trains. From the front, and highlighted against a backdrop of Côtes de Genève stripes on the lower half of the dial, are two triple-armed balances secured in position by the two balance cocks, which face one another and fuse together to create a circle. The open dials featuring Arabic numerals for one time zone and Roman numerals for the other are made of “smoked” metal-treated sapphire crystals, allowing both transparency as well as legibility.

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Completing the overall sense of balance are the two crowns, one in the conventional position at 3 o’clock, the other at 9. The two mainsprings are both wound using the crown on the right. However, the time in each of the two selected time zones is set using its own crown, which ensures that neither of the zones is moved or changed inadvertently. The time zone on the left is set using the crown at 9 o’clock and the time zone on the right by the crown at 3 o’clock.

The DBG Skeleton is available in a Limited Edition of 30 timepieces.

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Technical Characteristics

Ref. 1DGAP.S10A.C120P  DBG Skeleton 5N Rose Gold Case

Movement                                
Calibre A&S1309
Manufacture Arnold & Son calibre, skeletonized and symmetrical,
hand-wound, 42 jewels, diameter 35 mm, thickness 3.90 mm.
Ppower reserve 40 h, 3 Hz / 21,600 vph
Functions:
Local hours, minutes and seconds, GMT hours and minutes,
local time 24 h indicator, GMT 24 h indicator
Movement decoration:
Nickel-silver movement, rhodium treated bridges and NAC grey treated main plate with Haute Horlogerie finishing: chamfered bridges with polished edges and satin finish surfaces, fine circular graining and Côtes de Genève, satin finished wheels with three-spoke design, blued screws
Dial:
Silvery-white and silvery opaline, metallized sapphire
Case:
Rose gold (4N), 44 mm diameter, 9.89 mm height, cambered
sapphire crystal with anti-reflective coating on both sides,
sapphire crystal display case back, water resistant 30 m /100 ft
Strap:
Hand-stitched brown or black alligator leather

Limited edition: 30 pieces

Reference: 1DGAP.S10A.C120P

Recommended Retail Price:  Rose gold case, CHF 35’300 (VAT excl.)


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Marketing & Sales
Boulevard des Eplatures 38
CH – 2300 La Chaux-de-Fonds
Switzerland
info@arnoldandson.com
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