SOURCE: rolex watch yacht master set time
Let me start by saying that I own this watch and LOVE it!
To set the time you need to pull the crown all the way out to the furthest position.
To set the date you need to have the crown in the position in between the "winding" position and the "time set" position. Basically, pull the crown out till you hear/feel 1 click to wind, 2 clicks (total) to set the date, and 3 (total) clicks to set the time. I always set the date first to 1 day behind the current date. I then move the crown out to set the time so that I can set the watch to either AM/PM depending on the actual time. For example, I set my Rolex today (the 5th of January at 3pm - just an example). I would first move the crown to the date setting function and move it to January 4. I would then move it out one more position to set the time. I would go around the watch until the date changed to the 5th and then go around from 12 to 12 to change from AM to PM. I would then move it to the 3 and then I'm all set. This is helpful because it will ensure that your date will correctly change when the day changes and not be 12 hours behind.
SOURCE: HOW TO SET NEW PIRELLI YACHT TIMER WATCH? MANUAL
This information comes from the movement manufacture and helps figure out what does what. I also have a yacht timer with no instructions.....hope this helps
A combination of design and technology, ISA 8270 is a precise racing timer developed especially for yachting races, displaying count-down during regatta departures with audible signals, followed by cumulated time during races. The dimensions (25.60mm, H 4.60mm) offer a large variety of opportunities for watch designs. It is suitable for the manufacture of models for gents and ladies watches.
This new calibre is an analogue quartz timer fitted with an alarm function. It displays the hours, minutes, seconds (small jumping seconds at 2 o’clock counter), and date shown by a date window at 6 o’clock. In addition, it allows count-down and race timing. The small hand at 10 o’clock counter and the central hand facilitate the display of count-down and time measurement clearly visible.
Count-down, Racing Timer and Alarm features
ISA 8270 yachting movement not only provides the traditional count-down at 10, 6 and 5 minutes, but also the versatility of setting count-downs at any minute from 10 to 1 minute.
One special feature is that it allows the possibility of recalibrating the count-down at every minute up to the last minute before departure. This latter function allows the navigators to readjust the watch at any time during the count-down to the closest full minute in order to be in line with the official procedure announced by the racing committee (RC) boat so as to get off the best possible start. Audible signals are emitted every minute to alert the progress of count-down. To give higher accuracy, every-second audible signals are emitted during the last 10 seconds count-down to ensure knife-sharp precision. Immediately after the departure, the count-down automatically shifts to the racing timer mode to measure the time of the race event for a maximum of 96 hours. Setting, start/stop and recalibration of count-down and race timing are facilitated by the pushers (at 2 o’clock and 4 o’clock), which are easier to operate.
Thanks to an oversized counter hand and a highly visible flange on the dial that our customers may design, the navigators can best monitor the time remaining before departure and during the entire procedure.
The alarm time is displayed in an analogue mode. Alarm start/stop is enabled by a pusher at 8 o’clock and is displayed by a central alarm hand (12 hours).
Superb performance
Born of precision, accuracy and innovation, ISA 8270 offers excellent quality and performance. Intended for yachting races, this movement gives answer to sports watches requiring indispensable qualities: strength, endurance, agility and outstanding speed.
When the trend of sportive and fashionable quartz watches prevails, this new Swiss Made ISA 8270 priced competitively with outstanding performance answers the expectations of an increasing market demand and customers, who wish to add a number of value-added exceptional designs to their next collections with strong sporting character.
Specifications
Calibre: ISA 8270 Yachting Movement
Size 11 1/2’’’
Swiss Made quartz movement, 9 jewels
6 hands, 2 counters, 3 pushers
Hour, minute, small second at 2H counter
Date window at 6H
Count-down (max. 10 minutes)
Racing timer (max. 96 hours)
Alarm (12 hours)
Technical information
Diameter: 25.60mm
Movement height: 4.60mm
Height of stem and pushers: 2.25mm
SOURCE: I bought a Sector 700 Yacht timer watch in
Got ot heir web site http://www.sectornolimits.eu/#/sector/eng/contact/user-manual and choose the instructions for your watch.
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