Descargar manuales 7s26 y 7s36

Podéis descargaros el manual de todos los relojes con los calibres SEIKO 7S26 y 7S37 en formato PDF de la siguiente web de SEIKO AUSTRALIA:

http://www.seiko.com.au/uploads/manuals_pdf/52_1.pdf

Diferencias entre los calibres 7S26 y 7S36 de Seiko

See THE THING?. That's the difference between the 7S26 and the 7S36. THAT THING!.

But what is THAT THING?.

THAT THING is, as Seiko calls it, the LOWER BRIDGE FOR THIRD WHEEL AND PINION.
THAT THING have TWO solid jewels that serve as LOWER CAP JEWELS for both 3rd wheel and escape wheel. But not exactly as the Diafix, that have with springs. So I don't know if we can call these jewels as "Diafix", but it doesn't matter anyway.

Of course, if they are cap jewels, the hole jewels need to be different than the regular hole jewels.
And because of the cap jewels, the wheels axles need to be different. I don't remeber now if the use of those cap jewels require the axles to be shorter or longer (I believe that they are longer), so, the 3rd and escape wheels for the 7S36 have the axles little longer (or little shorter, don't remember). But I'm sure they are different, because they have different parts number.

This is standard: for example, the 3rd and escape wheels for the 17 jewels version of the caliber 7006 are different from the 19 jewels version of the same caliber, due to the use of upper Diafix for both wheels. That's make the 19 jewels version to need longer (or shorter, can't remember) axles for those wheels. And there are others examples like the caliber 6106: due to the 17, 23, or 25 jewels versions, the wheels have different axle length depending if they have Diafix or not.

So here are the things, listed.

ADDED PARTS:

• LOWER BRIDGE FOR THIRD WHEEL AND PINION (that have 2 cap jewels (lower) for the 3rd and escape wheels)
• LOWER BRIDGE FOR THIRD WHEEL AND PINION SCREW

PARTS THAT ARE DIFFERENT:

• ESCAPE WHEEL (for the reason mentioned: the pivot axle lenght is different because of the added cap jewel)
• THIRD WHEEL (same reason)
• LOWER HOLE JEWEL FOR THE ESCAPE WHEEL (need to be different to receive the cap jewel)
• LOWER HOLE JEWEL FOR THE 3RD WHEEL (same)

Now, more golden questions: "What THAT THING serve for?. This make the 7S36 more accurate?. THAT THING is an advantage?. This makes the 7S36 better?"

You know how much a Seiko fan I am , otherwise, I would not be here right now, but my sincere opinions are: "Nothing, No, No and No".

You could disagree, but in practice, they serve for nothing, and they doesn't make any noticeable effect. And even technically and theoretically, the advantages are difficult to prove, in my opinion.

My conclusion is that THAT THING serve for rise the jewel count only, and to make the models equipped with 7S36 like something more. They wouldn't like to use the same caliber for the basic models and for the more elaborated models, so they take a 7S26, put 2 useless jewels, and call the caliber with another name.

The clue is simple: on the past, calibers of the same name have versions with different number of jewels, although the caliber name was the same. Examples?

6106 - 17, 23, and 25 jewels (25 for "A", 17 and 25 for "B", 17, 23 or 25 for "C")
7006 - 17 and 19 jewels

And note that the 6106C, for example, use exactly the same artifice of the 7S36 to rise the jewel count.

So, why Seiko decided to add two jewels for the 7S26, and change the name for 7S36 instead of just say that there are 21 and 23 jewels versions of the 7S26?. If it is not marketing reasons, I don't know another answer. The same is for the 7S55: the only difference from the 7S35 is the decorated rotor. Is it sufficient to call the caliber with another name?

On the past, the calibers of the same family have more decent reasons to have different names, like 6309 and 6319, or 6106 and 6119. But the differences between the 7S family are so small. But on the other hand, if they didn't call them with different names, the 7S family will have only two variants: 7S26 and 7S25 (the date only version). That's because the absence of DAY calendar is a decent reason to change the name, as Seiko always did. But 2 more jewels, or a decorated rotor are not technical reasons to call them with different names. But thinking deep, I believe that if they have only 7S25 and 7S26, if would not be even a family. So Seiko wiselly call them with different names to make the 7S family too look richer.

And in my opinion, they choose right from the marketing point of view. What's the problem with that?

That's it!

Thanks for reading. Hope it was enjoyable. And sorry for the long message, specially the long thoughts.

Best regards,

Adriano

FUENTE: http://www.larrybiggs.net/scwf/index.php?mod=103&action=0&id=1108790043

Relojes Alba, segunda marca de Seiko

Los relojes ALBA son apenas conocidos en España, entre otras razones porque no se comercializan en los circuitos habituales.

ALBA es una segunda marca de Seiko, con modelos deportivos y juveniles. La mayor parte de estos son AUTOMATICOS.

El modelo que se muestra arriba puede adquirirse online por aproximadamente 150 euros.

Model # : AL4041 - Black dial/ SS version

Model # : AL4053 - White dial / RSversion

Model # : AL4051 - Black dial/ Full Numbers

Condition : New in box

Movement : Caliber 7S26-X011

Water Resistant : 100 m

Material : Mineral Crystal

Dial : Highly luminous indexes, rotating bezel, date/day features

Case : 46mm x 12.5 mm thickness (diameter w/o crown)

Case : 48 mm x 12.5 mm thickness (diameter w/ crown)

Additional information :

SOLID stainless steel bracelet with double lock

Lug width : 22 mm

Uni-rotating bezel

The New Seiko Prospex 6R15 Divers by Paul Hubbard

The New Seiko Prospex 6R15 Divers

For many years now, Seiko has sold a line of mechanical dive watches based on the trusty 7S26 movement (the heart of the watch). They retail for under $200, they are well made and reliable, and they are generally considered to be excellent "beaters".

The problem is that the 7S26 movement is burdened with a couple of design compromises: you can't wind it by hand, and it is a non-hacking movement, which means that when you pull the stem out all the way, the movement doesn't stop as you might expect (making it very difficult to set the watch with much accuracy). Of course, Seiko sells several other watches with better movements, but they cost more.

As of April 2007, that's about to change. Seiko is introducing three new divers based on the 6R15 movement which is more accurate, can be wound by hand, and can be hacked. With stainless steel cases, they come in black (SBDC001), blue (SBDC003), and orange (SBDC005), and will be priced at $428 (63,000 yen).

The 6R15 divers cost a bit more then their predecessors, but still represent excellent value for the money, and are generating a lot of interest on the net. I can safely predict that they'll displace the 7S26 divers from a lot of wrists.

By Paul Hubbard

Movimiento del balancín del calibre 7S26 (Video)

Este pequeño video muestra el movimiento del balancín de un calibre Seiko 7S26, perteneciente a un reloj de la serie Seiko 5 Military.

7S26, 7S36, 7S37, 6R15

7S26

6R15

7S36

7S37

Seiko 5

Soy un admirador de los SEIKO 5.

Seiko 5 es un maravilloso "invento" japonés de Seiko, que impone 5 requisitos a sus relojes de la serie "5":

AUTOMATICO

Sumergible

Anti-chock

Fecha

Día de la semana.

Desafortunadamente esta serie no se comercializa en Europa ni Norteamérica, ya que su "mercado natural" son los países de escaso desarrollo, que necesitan relojes FIABLES, SIN PILA y DURADEROS.

El reloj de las fotografías fue mi primer Seiko 5, comprado en eBay, y también vendido en eBay. Este reloj montaba el calibre 7S26 de 21 rubíes. Actualmente somos legión los apasionados de esta gama Seiko. Hay muchas razones, entre las que destacaría:

• "Value for Money", o en castellano, ofrece mucho valor para el coste que tienen
• Son diseños extraordinariamente funcionales, sin ornamentos, sencillos y prácticos
• Son muy duraderos; en internet se puede encontrar testimonios de gente que ha llevado un Seiko 5 por más de treinta años.
• Atemporales
• Con la maquinaria a la vista
• Con gran mercado para intercambiar, comprar o vender