Crazy 99p start price - and NO RESERVE...

Dial/Hands  Customised Seiko Dial, using a classic Swiss design Scuba Diver's style, in black with large triple-baton indices (quadruple at 12). The dial is signed 'SEIKO, AUTOMATIC' to the left upper section, and 'PROFESSIONAL, WATER150MPROOF, Suwa symbol' to the right lower section. There is a printed Manta Ray logo to the lower left. The markers at 6, 9 and 12 have a partial 'gunsight' inner section. There's a 'Quickset' Day & Date window at 3 o'clock (the Calendar can be adjusted to display the Day in English or Arabic (Farsi). The Days are displayed in Black, except on Sunday, which is printed in a contrasting Red (if you opt for the Arabic display, Saturday is in Red). The Chapter ring is new, in black, with a minute marker track and arabic numerals picked out in red at the 5 minute intervals. It's set at an angle, which adds an effective impression of extra depth to the Dial.
I've fitted new Orange & White/White 'MarineMaster' style hands, a segmented 'Broadsword' Hour hand, a segmented 'Arrowhead' Minute hand, and a white 'Needle' Seconds hand with a luminous circle near the tip. I've used a superior luminous treatment on both the hands and the markers, and they glow beautifully after exposure to light - they won't shine all night, but it lasts for a good spell, a nice bonus on a redialled watch. 
Case Large dual-finish steel Case, in a Satin-brushed finish to the upper surfaces, and a Highly-polished finish to the sides and back - overall in excellent condition, with minimal signs of use (I've had this professionally polished/rebrushed, and it has come up beautifully - I'm struggling to find any marks, and there are certainly no obvious dings or scratches). The case edges remain sharp and nicely defined. 
Bezel Bidirectional steel Bezel, good resistance, turns with 60 ratcheted 'clicks', in excellent condition, with a standout new ceramic 'Submariner' Bezel Insert - also in black, printed with elapsed-time markings, and with a very unusual and effective luminous treatment.  
Caseback The screwdown Caseback is in very good condition, again expertly cleaned and lightly polished, with only minor faint marks. The manufacturer wording on the caseback remains clear and defined, and reads as follows: "Seiko, St Steel, 6309-7290 F1, Water Resistant, 260340,  A, Suwa Symbol" plus the Seiko Wave logo in the centre.   Crown Original screwdown ridged edge steel crown, offset at the 4 o'clock position, screws down and adjusts perfectly, stem is fine. Cleaned and polished, in very good condition, negligible marks if any. 
Crystal New scratch-resistant Mineral Crystal, in excellent condition, with no marks of any kind (checked under magnification).
Movement Seiko-signed Japanese produced 6309A 17 Jewel Automatic movement. My watchmaker has fully serviced the movement for me, and replaced all the gaskets. He reports it is in excellent condition, and appears original to the watch. I've regulated it and it is very accurate. The Serial Number indicates the original manufacturing date as June 1982.
Strap A brand new aftermarket Seiko Z22 'Accordion' ridged rubber Diver's strap has been fitted, with a floating keeper, along with a new brushed steel buckle. I've used 'Fat' Seiko Spring Bars, which are a much better fit for these straps, and help to ensure that the case lug holes don't get worn and loose through excessive movement. Will comfortably fit a wrist size of up to 8.5" (220mm+). Some extra photos of the standard strap - click if you want to enlarge:

  Running Condition Running, and keeping excellent time. As well as the Service, I've regulated the movement, and tested it using a professional timing machine. The watch has also been 'bench-tested' twice on an automatic winder, over at least 24 hours each time, and is accurate to better than +/-18 seconds per day max. (anything under 20 seconds a day is excellent for a vintage automatic). 
Measurements Width without crown - 42mm (45.8mm including crown), Lug to Lug - 45.1mm, depth 13.1mm. Weight total 102 grams.
Other  

This is a very smart Seiko Diver's Automatic watch, in a large 42mm, which wears quite proudly on the wrist as it's a shade over 13mm deep. Even though it's on a Seiko 'Accordion' style rubber Diver's strap, it's a hefty 102 grams, and feels very solid and well constructed, with a substantial wrist presence. 

My watchmaker has FULLY SERVICED the 17 Jewel Seiko Japanese Automatic movement, which is working beautifully - the watch has been regulated and keeps accurate time. The custom 'DX' Diver's Dial with the Manta Ray logo, the 'MarineMaster' style hands and the terrific ceramic 'Submariner' style bezel insert go together really well, and add to the iconic Scuba Diver's appearance. The luminous treatment on the Hands and Markers has been upgraded, and is very effective. 

Though pre-owned, this watch really is in very good condition, with only minimal signs of use, and has clearly been maintained well. Plus I've had the case and caseback expertly refurbished, and it looks terrific, as you can see from the pictures.

  I'll send the winning bidder a PDF File with the full Seiko instruction manual, which will show you how to change the day and date and maintain the watch etc.

This model is no longer in production, and certainly didn't look like this originally, but I'm sure it will have cost more than my starting price - I'm starting my auction at just 99p, with NO RESERVE - you could get a top Seiko Automatic Scuba Divers watch, fitted with a custom Dial, Hands and Insert, expertly refurbished and professionally Serviced, at a real bargain price!

I've tried to be as accurate as I can in the description of this watch, please read the description and look at the photographs carefully.  You should study the photographs, which I've taken in close up detail - it will be enable you to evaluate the cosmetic condition far more accurately than I can describe it. 

Postage for this item, packed weight around 140 grams and which will be securely packaged, will be FREE by First Class Signed-For Delivery (1-2 days delivery time), or if you prefer, I can use Royal Mail Special Delivery, which guarantees Next Day delivery (there will be an at-cost charge of £2.85 for the postal upgrade).  I always aim to dispatch my sold items within one working day of receipt of cleared funds. If payment is received before noon, I will post same day. Of course, should you win more than one of the items I'm selling, I will combine postage costs as much as possible where applicable.