Στάλθηκε από: Unjusuams
« στις: Ιούνιος 16, 2024, 07:47:06 πμ ».
Στάλθηκε από: Βost
« στις: Σεπτέμβριος 24, 2016, 18:34:09 μμ »Υπάρχουν και εδώ αρκετές πληροφορίες...!
Στάλθηκε από: sneakysneaky
« στις: Σεπτέμβριος 28, 2015, 23:24:09 μμ »Στον Τσίπρα δωσ'το να το διαβάσειΓια την εικόνα λες γιατί σιγά μην το διάβασες...Αναγκαστηκα να διαβασω αγγλικά......ολο κουραστικα λινκ ποσταρετε
. Οφ τοπικ αλλά δεν κρατήθηκα...
.Στάλθηκε από: george_
« στις: Σεπτέμβριος 28, 2015, 22:57:16 μμ »Λέει ότι η μηχανή του σεικο , κάνει σαν τρακτερ
Στάλθηκε από: nicolasg
« στις: Σεπτέμβριος 28, 2015, 22:56:13 μμ »Για την εικόνα λες γιατί σιγά μην το διάβασες...Αναγκαστηκα να διαβασω αγγλικά......ολο κουραστικα λινκ ποσταρετε
Στάλθηκε από: george_
« στις: Σεπτέμβριος 28, 2015, 22:49:33 μμ »Για την εικόνα λες γιατί σιγά μην το διάβασες...λέει ότι η 7750 αν και παλιά,είναι πολύ καλη
Στάλθηκε από: Vagelis
« στις: Σεπτέμβριος 28, 2015, 22:47:07 μμ »Για την εικόνα λες γιατί σιγά μην το διάβασες... 
Στάλθηκε από: nicolasg
« στις: Σεπτέμβριος 28, 2015, 22:45:03 μμ »Καλό
The 8R28 is part of a large family of movements with various complications. The 6R20, 6R21, 6R24 and 6R27 are all in the same family as the 8R28, it's just the 8R28 has a chronograph on the other side as opposed to stuff like a power reserve.
These movements share the basic design of more humble movements like the 7S26 and 6R15, but they are so radically redesigned otherwise that their heritage, outside of how the movement looks, is not obvious. For instance the 6R2X and 8R family is 28800 BPH.
As you can see, the chronograph module is actually on the other side of the movement--all of the movements in this family look almost the same from the back because the complications are hidden behind the mainplate. Also notice the "entry level" Diashock shock absorber, which is a flower on high-end Seiko movements, and the lack of an Etachron fine adjustment screw. These are indications that Seiko probably never developed the movement to be super precise.
As per being against a top-o-the-line ETA, it would normally lose in accuracy since the ETA would be a chronometer. The 8R28 has a much more sophisticated chronograph, however, one of the most advanced in the world right now, and unlike the 7750, is bidirectional winding, which (probably) increases winding efficiency and eliminates rotor noise and rotor wobble.
They did make a more accurate version, called the 8R39, which I've never actually even seen and is rarely used, but apparently has wildly upgraded GS-derived time keeping parts, like the hairspring and escapement.
The accuracy on the 8R28 should be reasonably good, and in ideal conditions, could be very accurate. Where it'll get wonky is when the power reserve is less than half full and when it rests in a position it doesn't like (which can be remedied by figuring out which position balances it out and letting it rest at night in that position). So worn every day, sleeping at night in what you figure out to be the ideal position, it could be quite good.
Στάλθηκε από: george_
« στις: Σεπτέμβριος 28, 2015, 15:40:46 μμ »τιμες ρολογιων?
By the way, if you don't mind spending a little more money, Seiko still makes a "high end" chronograph, developed for Credor but available in a variety of watches, called the 6S chronograph, most typically the 6S37.
There's a picture with a reduced rotor for clarity. You can see it uses Seiko's high end "flower" shock and it also has an etachron fine adjustment screw. It's also rated for substantially better accuracy (they did make a cheaper, simpler, lower accuracy version as well, and higher end hand wound versions) out of the box. It's an older movement design, if that makes any difference to you.
Στάλθηκε από: constantine
« στις: Σεπτέμβριος 28, 2015, 12:41:28 μμ »
The 8R28 is part of a large family of movements with various complications. The 6R20, 6R21, 6R24 and 6R27 are all in the same family as the 8R28, it's just the 8R28 has a chronograph on the other side as opposed to stuff like a power reserve.
These movements share the basic design of more humble movements like the 7S26 and 6R15, but they are so radically redesigned otherwise that their heritage, outside of how the movement looks, is not obvious. For instance the 6R2X and 8R family is 28800 BPH.
As you can see, the chronograph module is actually on the other side of the movement--all of the movements in this family look almost the same from the back because the complications are hidden behind the mainplate. Also notice the "entry level" Diashock shock absorber, which is a flower on high-end Seiko movements, and the lack of an Etachron fine adjustment screw. These are indications that Seiko probably never developed the movement to be super precise.
As per being against a top-o-the-line ETA, it would normally lose in accuracy since the ETA would be a chronometer. The 8R28 has a much more sophisticated chronograph, however, one of the most advanced in the world right now, and unlike the 7750, is bidirectional winding, which (probably) increases winding efficiency and eliminates rotor noise and rotor wobble.
They did make a more accurate version, called the 8R39, which I've never actually even seen and is rarely used, but apparently has wildly upgraded GS-derived time keeping parts, like the hairspring and escapement.
The accuracy on the 8R28 should be reasonably good, and in ideal conditions, could be very accurate. Where it'll get wonky is when the power reserve is less than half full and when it rests in a position it doesn't like (which can be remedied by figuring out which position balances it out and letting it rest at night in that position). So worn every day, sleeping at night in what you figure out to be the ideal position, it could be quite good.
πολυ σφυροκαλεμο εχει πεσει στο spacer movement ring
Στάλθηκε από: Βost
« στις: Σεπτέμβριος 28, 2015, 09:01:31 πμ »
By the way, if you don't mind spending a little more money, Seiko still makes a "high end" chronograph, developed for Credor but available in a variety of watches, called the 6S chronograph, most typically the 6S37.
There's a picture with a reduced rotor for clarity. You can see it uses Seiko's high end "flower" shock and it also has an etachron fine adjustment screw. It's also rated for substantially better accuracy (they did make a cheaper, simpler, lower accuracy version as well, and higher end hand wound versions) out of the box. It's an older movement design, if that makes any difference to you.
Στάλθηκε από: Βost
« στις: Σεπτέμβριος 28, 2015, 09:00:54 πμ »
The 8R28 is part of a large family of movements with various complications. The 6R20, 6R21, 6R24 and 6R27 are all in the same family as the 8R28, it's just the 8R28 has a chronograph on the other side as opposed to stuff like a power reserve.
These movements share the basic design of more humble movements like the 7S26 and 6R15, but they are so radically redesigned otherwise that their heritage, outside of how the movement looks, is not obvious. For instance the 6R2X and 8R family is 28800 BPH.
As you can see, the chronograph module is actually on the other side of the movement--all of the movements in this family look almost the same from the back because the complications are hidden behind the mainplate. Also notice the "entry level" Diashock shock absorber, which is a flower on high-end Seiko movements, and the lack of an Etachron fine adjustment screw. These are indications that Seiko probably never developed the movement to be super precise.
As per being against a top-o-the-line ETA, it would normally lose in accuracy since the ETA would be a chronometer. The 8R28 has a much more sophisticated chronograph, however, one of the most advanced in the world right now, and unlike the 7750, is bidirectional winding, which (probably) increases winding efficiency and eliminates rotor noise and rotor wobble.
They did make a more accurate version, called the 8R39, which I've never actually even seen and is rarely used, but apparently has wildly upgraded GS-derived time keeping parts, like the hairspring and escapement.
The accuracy on the 8R28 should be reasonably good, and in ideal conditions, could be very accurate. Where it'll get wonky is when the power reserve is less than half full and when it rests in a position it doesn't like (which can be remedied by figuring out which position balances it out and letting it rest at night in that position). So worn every day, sleeping at night in what you figure out to be the ideal position, it could be quite good.
Στάλθηκε από: Βost
« στις: Απρίλιος 02, 2015, 09:26:00 πμ »
Στάλθηκε από: stelakos
« στις: Μάρτιος 15, 2015, 17:58:02 μμ »κριμα...ετσι πρεπει
Στάλθηκε από: george_
« στις: Μάρτιος 15, 2015, 17:24:44 μμ »κριμα...
Στάλθηκε από: Βost
« στις: Μάρτιος 15, 2015, 17:24:07 μμ »η 9s ειναι στα GS μονο?ναι ναι...ναυαρχίδα μηχανή....
φανταστικός πίνακας....φανταστικός λέμε......!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Στάλθηκε από: george_
« στις: Μάρτιος 15, 2015, 17:22:28 μμ »η 9s ειναι στα GS μονο?
Στάλθηκε από: george_
« στις: Μάρτιος 15, 2015, 17:20:14 μμ »καλυτερα σε αυτο το θεμα,πολυ σωστα Αλεκο
Στάλθηκε από: Βost
« στις: Μάρτιος 15, 2015, 17:17:05 μμ »
(Μπράβο ρε Γιώργο που το βρήκες
)Στάλθηκε από: george_
« στις: Φεβρουάριος 21, 2015, 14:58:46 μμ »the 4R15 is closer to the 6R15 then the 7S series,
The 4R15 is a 6R15 with the hacking lever and the handwinding bridge removed, it retains the escapement and mainspring from the 6R15 allowing it to have a -15/+25 accuracy like the 6R15 and the 50h Power reserve like the 6R15.
The 4R35/6/7/8 is the other way around, its a 6R15 with the escapement and mainspring from a 7S series calibre, meaning that it has the -25/+35 accuracy and 40h power reserve from the 7S while retaining the hacking lever and handwinding bridge from the 6R15.
Supposobly theres a new version of the 6R15 which is the C variant, the B variant made it part compatible with the 6r20 calibre, the C variant makes it part compatible with the 7S calibre to be able to crank out the 7S, the 4R15, 6R35/6/7/8 and the 6R15 out of the same assembly line, you can tell apart the C variant becuase its 24 jewels like the 4R35/6/7/8 and not 23 jewels like the old 6R15.
In summery :
So basicly, all the calibres are 21,600 BPH except the 6R20 which is 28,800.
7S25/26/35/36 is a non hacking, non handwidning -25/+35 second accuracy 40h power reserve.
4R15/16 is non hacking, non handwidning -15/+25 second accuracy 50h power reserve.
4R35/36/37/38 is hacking, handwinding -25/+35 second accuracy with 40h power resereve
6R15 is hacking, handwinding -15/+25 second accuracy with 50h power reserve.
The 4R15 is a 6R15 with the hacking lever and the handwinding bridge removed, it retains the escapement and mainspring from the 6R15 allowing it to have a -15/+25 accuracy like the 6R15 and the 50h Power reserve like the 6R15.
The 4R35/6/7/8 is the other way around, its a 6R15 with the escapement and mainspring from a 7S series calibre, meaning that it has the -25/+35 accuracy and 40h power reserve from the 7S while retaining the hacking lever and handwinding bridge from the 6R15.
Supposobly theres a new version of the 6R15 which is the C variant, the B variant made it part compatible with the 6r20 calibre, the C variant makes it part compatible with the 7S calibre to be able to crank out the 7S, the 4R15, 6R35/6/7/8 and the 6R15 out of the same assembly line, you can tell apart the C variant becuase its 24 jewels like the 4R35/6/7/8 and not 23 jewels like the old 6R15.
In summery :
So basicly, all the calibres are 21,600 BPH except the 6R20 which is 28,800.
7S25/26/35/36 is a non hacking, non handwidning -25/+35 second accuracy 40h power reserve.
4R15/16 is non hacking, non handwidning -15/+25 second accuracy 50h power reserve.
4R35/36/37/38 is hacking, handwinding -25/+35 second accuracy with 40h power resereve
6R15 is hacking, handwinding -15/+25 second accuracy with 50h power reserve.
Στάλθηκε από: Βost
« στις: Ιανουάριος 21, 2015, 17:28:26 μμ »Φοβερος Αλεκο!
Πολυ καλη δουλεια!
Εδωσες υλικο για διαβασμα και ονειρα!
(Κάντε κλικ εδώ να εμφανιστεί η φωτογραφία.)
φίλε...αν και ευτυχώς με την Seiko υπάρχουν επιλογές για όλα τα πορτοφόλια 
Στάλθηκε από: Vagelis
« στις: Ιανουάριος 21, 2015, 17:25:41 μμ »Φοβερος Αλεκο!
Πολυ καλη δουλεια!
Εδωσες υλικο για διαβασμα και ονειρα!
Πολυ καλη δουλεια!
Εδωσες υλικο για διαβασμα και ονειρα!
Στάλθηκε από: Βost
« στις: Ιανουάριος 21, 2015, 17:18:47 μμ »Στάλθηκε από: Βost
« στις: Ιανουάριος 21, 2015, 17:15:00 μμ »The Calibre 9S86
Grand Seiko launched its hi-beat calibre 9S85 back in 2009. This particular self-winding movement has an usually high frequency of 36,000 vph (5Hz) and the Japanese watch company has used it as the basis for its new calibre, the 9S86, the first ever high-beat GMT from Grand Seiko.
Accuracy is a key attribute of all Grand Seiko movements and the 9S86 maintains this enviable reputation with a daily variation specified as -3 to +5 seconds per day.One reason I have become wholeheartedly bewitched by Grand Seiko is the engineering excellence and flawless finishing of its movements. The 9S86 proves to be no exception.
An uniquely shaped titanium oscillating mass is presented centre-stage. It exhibits an unusual hue, employing anodic oxidation to impart a comely gold tone. The rotor features several apertures which reveal some of the details beneath.However, I must confess I prefer the oscillating mass used in the non-limited versions of the Hi-beat 36,000 GMT. This is not due to any aversion to the gold tincture of the rotor within the limited edition model, but simply because the oscillating mass within the standard model reveals more of the beautiful bridges beneath and other fabulously refined micro-components.
The Calibre 9S86 fitted in non-limited edition models SBGJ001 & SBGJ003
The bridges are decorated with broad, straight stripes, similar in concept to Côtes de Genève or Glashütte Ribbing, but with a individual appearance all of there own.
(http://www.escapementmagazine.com/articles/grand-seiko-hi-beat-36000-gmt-limited-edition-sbgj005---in-depth-watch-review-by-escapement.html)
Grand Seiko launched its hi-beat calibre 9S85 back in 2009. This particular self-winding movement has an usually high frequency of 36,000 vph (5Hz) and the Japanese watch company has used it as the basis for its new calibre, the 9S86, the first ever high-beat GMT from Grand Seiko.
Accuracy is a key attribute of all Grand Seiko movements and the 9S86 maintains this enviable reputation with a daily variation specified as -3 to +5 seconds per day.One reason I have become wholeheartedly bewitched by Grand Seiko is the engineering excellence and flawless finishing of its movements. The 9S86 proves to be no exception.
An uniquely shaped titanium oscillating mass is presented centre-stage. It exhibits an unusual hue, employing anodic oxidation to impart a comely gold tone. The rotor features several apertures which reveal some of the details beneath.However, I must confess I prefer the oscillating mass used in the non-limited versions of the Hi-beat 36,000 GMT. This is not due to any aversion to the gold tincture of the rotor within the limited edition model, but simply because the oscillating mass within the standard model reveals more of the beautiful bridges beneath and other fabulously refined micro-components.
The Calibre 9S86 fitted in non-limited edition models SBGJ001 & SBGJ003
The bridges are decorated with broad, straight stripes, similar in concept to Côtes de Genève or Glashütte Ribbing, but with a individual appearance all of there own.
(http://www.escapementmagazine.com/articles/grand-seiko-hi-beat-36000-gmt-limited-edition-sbgj005---in-depth-watch-review-by-escapement.html)
Στάλθηκε από: Βost
« στις: Ιανουάριος 21, 2015, 17:07:11 μμ »Στάλθηκε από: Βost
« στις: Ιανουάριος 21, 2015, 17:05:07 μμ »στο δεύτερο θέμα, που αναφέρεται, μπορώ να πω ότι έχεις καταστρέψει γυναικόπαιδα!Μπράβο Αλέκοείχα υποσχεθεί στον Νικόλα και μετάφραση..αλλά βαρέθηκα
το φόρουμ είναι και για να μαθαίνουμε αλλά και για να ξεφεύγουμε λίγο απο την καθημερινότητα μας...οπότε και πρέπει να τα εμπεριέχει όλα 
Στάλθηκε από: george_
« στις: Ιανουάριος 21, 2015, 17:03:38 μμ »στο δεύτερο θέμα, που αναφέρεται, μπορώ να πω ότι έχεις καταστρέψει γυναικόπαιδα!Μπράβο Αλέκοείχα υποσχεθεί στον Νικόλα και μετάφραση..αλλά βαρέθηκα
Στάλθηκε από: Βost
« στις: Ιανουάριος 21, 2015, 17:02:53 μμ »Ποια ειναι η πιο σύγχρονη μηχανή των seiko;τώρα δεν ξέρω αν έχω μείνει πίσω...αλλά νομίζω Caliber 8X82 σε Seiko Astron και σε μηχανικές καλίμπρες Grand Seiko caliber 9S86
Φιλικά .......Γιωργος
Στάλθηκε από: Βost
« στις: Ιανουάριος 21, 2015, 16:58:08 μμ »Μπράβο Αλέκοείχα υποσχεθεί στον Νικόλα και μετάφραση..αλλά βαρέθηκα
τπτ Γιώργο...εδώ είμαστε να μάθουμε και 5 πράγματα όχι μόνο διπλό πειρασμό Στάλθηκε από: george_
« στις: Ιανουάριος 21, 2015, 16:57:07 μμ »Μπράβο Αλέκο