All posts by Eric

Seiko Palladium Digital D229-5010

Seiko Palladium D229-5010
Seiko Palladium D229-5010

Coated For A Reason?

Here's something a little different, well this time, by the finish. The case itself gives a yellowish hue under normal light, unlike the typical reflection made by stainless steel. It is coated by palladium, that could be better told under a magnifying glass. What's the purpose, maybe someone can tell me.

The front buttons provide instant access to all functions, including 3 individual alarms. And it belongs to the same era of the D409, where dot matrix display was something new. The original bracelet is a plus. All front buttons work fine, not going to take it apart as the membrane underneath could be too weak to be tempered. But still need to clean the crown and the light button for better response. More exercise then!

Seiko Automatic Chronograph 6139-XXXX

Seiko 6139 Chronograph
Seiko 6139 Chronograph

Franken With Style - 6139

This 6139 is not something that Seiko originally brought out, it is in fact a piece that being put together with parts from different variants of the 6139 series.  People usually call this kind of watches Frankenstein watch, or in this case a FrankenSeiko.

With a good running 6139 inside, it has a 7100 Vader dial and hands, an early 6010 case, a Chinese Kanji day wheel, and lastly a caseback from a relatively less seen 7011. Really one of a kind.  Although the watch right here has parts from 'at least' 4 different watches, they all do work together without any need of modification or alteration.  They are all from the 6139 series, and most of the time original parts can be shared among them.  This 6139 is a very good example.

Fake parts are not acceptable.  But if one was built with genuine parts to form a Frankenstein, and if you do it right, it could be a very nice 'one of a kind' model.  Just do it right.

Seiko 6139 Chronograph
Seiko 6139-7100


Seiko 6139-6010


Seiko 6139-7011


Seiko 6139 Advert 1
Seiko 6139 Advert 2
Seiko 6139 Advert 3

Seiko JDM Quartz Driver 7C43-7010

Seiko 7C43-7010 Diver
Seiko 7C43-7010 Diver
7C43-7010 Catalog 1986

from 1986 JDM Catalog


The One That Set The Standard

The 7C43-7000 series was the second generation of quartz diver that utilize this casing.  The first one was the 7548-7000 series.  After an upgrade of the case design on the final version of the 7548, which crown the rating from 150m to 200m, they were then being classified as Professional diver watches. The same case design and water resistant structure, is still being used in today's diver, namely the best selling Seiko entry level diver SKX series, with the same 200m rating.

The new 7C43 movement were first used in 1986, and is proven to be very reliable and durable.  The 7C movements are still being used in today's diver, with case rating from 300m to 1000m models.  Shown here is the early 7C43 from 1988, a Japanese Domestic Model, which has a Kanji day-wheel.  In fact, this were sold worldwide with the same configuration, with just different day-wheel localization.  

Seiko Racing Master A781-400A

Seiko Racing Master A781-400A
Seiko Racing Master A781-400A

Designed For Racers

The Racing Master was introduced in 1988, to be a digital watch made with the functions for track racing sports.  

For easy manipulation, the frequent-used buttons are positioned on the front plate, the start-stop button, and the lap-button.  So even with the gloves on, the user can still click the button easily.  The module A781 came with those standard features like chronograph and alarm, plus a few more.  The user can enter the lap length, so it could log the fastest lap made, the time differences between laps, and also calculate the average speed made of the laps.  These are the features that do not appeared on other non-racing digital watches.

Another variation of this watch which didn't show up on the catalog, was the Honda version, which I will show it in my future blog.  Stay tuned!

A781-400A Catalog

Seiko Type II 7546-8070

Seiko Type II 7546-8070

Affordable Vintage

Type II, is a series of dress watches offered by Seiko in their early quartz days, in the late seventies.

It is positioned as the entry level series and have a variety of case styles and dial designs. Mostly recognized by the public with their use of many wild colors on their dials.  Other than colors, they also put much attention on the texture applied to the dial.  The example shown right here, uses a uniform layout of tiny inverted pyramids on the dial, to create an illusion of dots with reflective sides.  A intuitive design to make the dial reflecting lights to different angles.

Different variations of Type II are still widely available in the used market, at very reasonable price points.  Just make sure you get it with a working quartz movement, or you will have to find a replacement for the swap.

Seiko Quartz Type II Advert
Seiko Type II 7546-8070

Seiko 國冠 Transistor Clock TTX-604

Seiko Transistor Clock TTX-604 front
Seiko Transistor Clock TTX-604 front
Seiko Transistor Clock TTX-604 back

1967 Shop Clock

A gift clock for a new shop opening in June 1967, by the Japanese brewery, 國冠酒造, which is no longer in business after 1995.

A very well made transistor clock from the old time, with such design mostly used in shops and restaurant, it is powered by a D-size battery.  Once the battery is installed, you have to press the button to kick start the movement.  The time adjustment post is made by aluminum, comes all the way through the bottom of the clock.  So a person can adjust the time without taking it down, when needed.

The clock has some handwriting at the back, showing it is a gift to a shop, dated June 1st, 1967. After 51 years, it is still keeping time as it should.

Seiko Transistor Clock TTX-604 dial

Seiko Lord Marvel 36000 5740-8000

Seiko Lord Marvel 36000 5740-8000
Seiko Lord Marvel 36000 5740-8000

High Beat!

How fast is your watch beating at?  It is referring to how quick the balance wheel inside the watch swinging at.  On the mechanical watch, you can see the second-hand moving forward 'a click' at a time. Each 'click' indicate a beat, or an one-way swing of the balance wheel.  The faster it swings, the higher beat the movement is running.

A typical watch nowadays are running at 21600 beat-per-hour (bph).  The one here is running at 36000bph.  You could notice the second-hand running much smoother, like sliding.  The travel distance between every 'click' is shorter, and it clicks through quicker.  This give you an illusion that it slides on instead of clicking through.

This watch is manufactured in January 1969, which was the same year and month of my birth time. And this is my only BMBY (birth month birth year) watch in my collection.  The linen dial and the gold plated case is mint, a lovely example of Lord Marvel from the 1960s.

Seiko Lord Marvel Catalog

Seiko First Solar Digital A156-5010 (White)

Seiko Solar A156-5010

Found At Last!

Digital Saturday!!

Had the A156-5000 Black Face, but we always love to collect them all.  To complete the A156 basic collection, to me, I want both that were shown on their introductory catalog.  Not only that, the bracelet in that was my target too.  To me, I've never seen one on sale.  So once I saw it, I know, it got to be mine.

The bracelet is extremely well made, with solid links from tip to toe.  Came in full length, and the few links I took out, I could feel the quality of it. Those bracelets from the early days, I must say, is as collectible as the watches.  And to make the collection perfect, an original matched bracelet is one of the most important parts of the game.

At the bottom of the page, you can see the black version I have.  And you can check out the intro page from the catalog, see that bracelet, yes, this is the one.

Seiko Solar A156-5010 bracelet
Seiko A156 Catalog
Seiko Solar A156-5010





Seiko Solar A156 Advertisement
Seiko Solar A156-5000

Black Version - A156-5000

Seiko Bell-Matic 4006-7010

Seiko Bell-Matic 4006-7010
Seiko Bell-Matic 4006-7010


Seiko 4006 ad2

Alarm Watch

Classic Alarm watch from the late '60s.

Before the existence of quartz alarm watches, which started to come around in the late '70s, These are the answers from various manufacturers.  Mechanical alarm watches.

Operation is simple, you wind up the alarm, set the time you want it to go off by turning the crown, then pull out one click on the top button.  That's it.  When it goes off, the real 'bell' inside will ring and also cause the case to vibrate, by the moving hammer knocking the bell.

However, the alarm wont last long, typical between 10 to 15 seconds, that's all.  So, don't count on it if you need to get up early in the morning.

Seiko 4006 ad1
Seiko Ad May 1972

Seiko Automatic 7006-7120

Seiko 7006-7120
Seiko 7006-7120

Circles & Squares

A Typical design of dress watches in the '70s.

If you flip through the old catalogs, you would not be surprised to see many wild designed by the Japanese watch manufacturers.  They loved to elaborate in designs by using the most basic ingredients, shapes and colors.  By mix and match, they came up with a wide range of watches, maybe sometimes on the same design, for different audience.

This one they put a circle in between the two squares in the design.  Top it with a faceted crystals with even more squares.  All these gave the watch a very solid dimensional prospective.

Made by Daini factory in Japan, 1975.

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