7.25 CT. NATURAL YELLOW OPAL GEMSTONE

7.25 CT. NATURAL YELLOW OPAL GEMSTONE FOR YOUR RING OR PENDANT
TYPE : NATURAL
WEIGHT : 7.25 CT
SIZE : 20mm X 12.5mmX7.5mm
SHAPE : OVAL
COLOUR : YELLOW/ORANGE
CLARITY : 1F
LUSTER : GOOD
ORIGIN : AUSTRALIA
PRICE : RM300.00

NEW IN BOX PICASSO MEN'S WRISTWATCH (SOLD)

NEW SWISS MADE PICASSO ART PAINTING WRISTWATCH

PICASSO ART PAINTING ON WHITE DIAL

CRYSTAL IS CLEAN WITH NO CRACK NO SCRATCHES

THE HIGH GRADE SWISS ETA QUARTZ MOVEMENT

RED COLOR METAL HANDS

STAINLESS STEEL CASE MEASURES APPROXIMATELY 45mm INCLUDING THE CROWN AND 54mm LUG TO LUG

SIGNED PICASSO CASE AND CROWN

NEW BROWN LEATHER BAND FITS 8.5" WRIST

NEW IN BOX, WORKING CONDITION AND KEEPING TIME

NEW IN BOX MOMO DESIGN CHRONOGRAPH MEN'S SPORT WATCH (SOLD)

NEW SWISS MADE MOMO DESIGN SPORT WRISTWATCH

SHINNING DARK METALLIC BLACK DIAL

CRYSTAL IS CLEAN WITH NO CRACK NO SCRATCHES

THE HIGH GRADE SWISS ETA CHRON0GRAPH MOVEMENT

LUMINESCENT SILVER TONE METAL HANDS

LUMINESCENT DOT MARKER

STAINLESS STEEL CASE MEASURES APPROXIMATELY 45mm INCLUDING THE CROWN AND 48mm LUG TO LUG

SIGNED MOMO DESIGN CROWN

NEW HARD CARBON RUBBER BAND FITS 8.5" WRIST

NEW IN BOX, WORKING CONDITION AND KEEPING TIME

AUTHENTIC ECCLISSI MOP CHRONOGRAPH MEN'S WRISTWATCH

AUTHENTIC SWISS ECCLISSI MEN'S WRISTWATCH CIRCA 1960'S

VERY CLEAN LIKE NEW SHINNING MOTHER OF PEARL DIAL

2 REGISTER CHRONOGRAPH DIAL AND DATE WINDOW AT 4 O'CLOCK

CRYSTAL IS CLEAN, NO CRACK NO SCRATCHES

JAPAN CHRONOGRAPH QUARTZ MOVEMENT

SILVER TONE METAL HANDS

SILVER TONE RAISED DOT MARKER

STAINLESS STEEL CASE MEASURES APPROXIMATELY 33m INCLUDING THE CROWN AND 40mm LUG TO LUG

UNSIGNED CROWN

ORIGINAL STAINLESS STEEL DOUBLE CLASP BAND FITS 7" WRIST

DISCONTINUED MODEL... !

WORKING CONDITION, CHRONOGRAPH WORKING AND SET TO ZERO, KEEPING TIME AND RECENTLY SERVICED

OFFER PRICE IS FOR RM550.00

AUTHENTIC AUREOLE MEN'S WRISTWATCH

VINTAGE SWISS AUREOLE MEN'S WRISTWATCH CIRCA 1960'S

VERY CLEAN LIKE NEW WHITE DIAL

CRYSTAL IS CLEAN, NO CRACK NO SCRATCHES

THE SWISS ETA QUARTZ MOVEMENT

BLACK TONE METAL HANDS

BLACK ARABIC MARKER

STAINLESS STEEL CASE MEASURES APPROXIMATELY 34mm INCLUDING THE CROWN AND 37mm LUG TO LUG

UNSIGNED CROWN

ORIGINAL STAINLESS STEEL DOUBLE CLASP BAND FITS 7" WRIST

DISCONTINUED MODEL... !

WORKING CONDITION, KEEPING TIME AND RECENTLY SERVICED

OFFER PRICE IS FOR RM450.00

VINTAGE AUTHENTIC JUGHANS QUARTZ MENS WATCH

VINTAGE SWISS JUGHANS MEN'S WRISTWATCH CIRCA 1960'S

VERY CLEAN LIKE NEW WHITE DIAL WITH DATE WINDOWS AT 3 O'CLOCK

CRYSTAL IS CLEAN, NO CRACK NO SCRATCHES

THE SWISS ETA QUARTZ MOVEMENT

BLACK TONE METAL HANDS

BLACK ARABIC MARKER

STAINLESS STEEL CASE MEASURES APPROXIMATELY 34mm INCLUDING THE CROWN AND 40mm LUG TO LUG

UNSIGNED CROWN

NEW STAINLESS STEEL EXPANDABLE BAND FITS 8.5" WRIST

DISCONTINUED MODEL... !

WORKING CONDITION, KEEPING TIME AND RECENTLY SERVICED

OFFER PRICE IS FOR RM350.00

VINTAGE AUTHENTIC JUGHANS QUARTZ MENS WATCH

VINTAGE SWISS JUGHANS MEN'S WRISTWATCH CIRCA 1960'S

VERY CLEAN LIKE NEW WHITE DIAL WITH DATE WINDOWS AT 3 O'CLOCK

CRYSTAL IS CLEAN, NO CRACK NO SCRATCHES

THE SWISS ETA QUARTZ MOVEMENT

BLACK TONE METAL HANDS

BLACK ARABIC MARKER

STAINLESS STEEL CASE MEASURES APPROXIMATELY 34mm INCLUDING THE CROWN AND 40mm LUG TO LUG

UNSIGNED CROWN

NEW GENUINE BLACK LEATHER BAND FITS 8.5" WRIST

DISCONTINUED MODEL... !

WORKING CONDITION, KEEPING TIME AND RECENTLY SERVICED

OFFER PRICE IS FOR RM350.00

VINTAGE BULOVA ACCUTRON 218 TURNING FORK

VINTAGE BULOVA ACCUTRON 218 MODEL N6 CASE CIRCA 1960'S

CLEAN AND SHINNING LIKE NEW TWO TONE DIAL

DATE WINDOW AT 6 O'CLOCK

CRYSTAL IS CLEAN WITH NO CRACK NO SCRATCHES

ACCUTRON 218 TURNING FORK ELECTRONIC MOVEMENT

WHITE TONE HANDS

RAISED WHITE TONE STICK MARKER

GOLD PLATED STAINLESS STEEL CASE MEASURES APPROXIMATELY 33mm NOT INCLUDING THE CROWN AND 40mm LUG TO LUG

ORIGINAL SIGNED TURNING FORK GP CROWN

GENUINE DARK BROWN LEATHER BAND FITS 8.5" WRIST

DISCONTINUED MODEL... VERY RARE AND HARD TO FIND!

WORKING CONDITION, KEEPING TIME AND RECENTLY SERVICED

OFFER PRICE IS FOR RM750.00

PAYMENT BY PAYPAL OR WIRE TRANSFER TO MY MAYBANK A/C

EMAIL syedmohri@yahoo.com or syedmohri@gmail.com

AUTHENTIC TECHNOMARINE CHRONOGRAPH MID SIZE WATCH

AUTHENTIC TECHNOMARINE CHRONOGRAPH MID SIZE WATCH

CLEAN & SHINNING WHITE CREAM DIAL

3 SUB DIAL FOR SECOND, MINUTE AND HOUR CHRONOGRAPH STOP WATCH

DATE WINDOW 4 O'CLOCK

SAPPHIRE SCRATCH RESISTANT CRYSTAL IS CLEAN WITH NO CRACK NO SCRATCHES

THE SWISS 7 JEWELS ETA CHRONOGRAPH QUARTZ MOVEMENT

PINK LUMINESCENT HANDS

PINK LUMINESCENT ARABIC MARKER

STAINLESS STEEL CASE MEASURES APPROXIMATELY 30m INCLUDING THE CROWN AND 40mm LUG TO LUG

ORIGINAL SIGNED TECHNOMARINE CROWN

PINK LEATHER STRAP FITS 7.5" WRIST

OFFER PRICE IS FOR RM1,300.00

PAYMENT BY PAYPAL OR WIRE TRANSFER TO MY MAYBANK A/C

EMAIL syedmohri@yahoo.com or syedmohri@gmail.com

AUHENTIC BULOVA 10K SOLID GOLD MEN'S WATCH

AUTHENTIC SOLID GOLD QUARTZ MEN'S WRISTWATCH CIRCA 1970'S

CLEAN & SHINNING GOLD TONE DIAL IN MINT CONDITION

DATE WINDOW AT 3 O'CLOCK

CRYSTAL IS CLEAN WITH NO CRACK NO SCRATCHES

THE SWISS 7 JEWELS ETA QUARTZ MOVEMENT

GOLD TONE GOLD/BLACK HANDS

RAISED GOLD/BLACK BATON MARKER

10K SOLID GOLD CASE MEASURES APPROXIMATELY 40m INCLUDING THE CROWN AND 40mm LUG TO LUG, 5mm HEIGHT (VERY THIN)

SIGNED CROWN

GENUINE BLACK LEATHER BAND FITS 8.5" WRIST

DISCONTINUED MODEL... VERY RARE MINT CONDITION!

WORKING CONDITION AND KEEPING TIME

OFFER PRICE IS FOR RM1,550.00

PAYMENT BY PAYPAL OR WIRE TRANSFER TO MY MAYBANK A/C

EMAIL syedmohri@yahoo.com or syedmohri@gmail.com

TISSOT WOODWATCH (SOLD)

AUTHENTIC TISSOT WOODWATCH MEN'S WATCH

CLEAN WOOD DIAL IN MINT CONDITION

CRYSTAL IS CLEAN WITH NO CRACK NO SCRATCHES

THE 7 JEWEL SWISS ETA QUARTZ MOVEMENT

GOLD TONE HANDS

NO HOUR MARKER

SOLID WOOD CASE MEASURES APPROXIMATELY 38mm INCLUDING THE CROWN AND 44mm LUG TO LUG

SIGNED CROWN

GENUINE BROWN LEATHER BAND FITS 8.5" WRIST

DISCONTINUED MODEL... VERY RARE MINT CONDITION!

WORKING CONDITION, KEEPING TIME AND RECENTLY SERVICED

SOLD TO MR KHAN FROM LANGKAWI

ELECTRIC, ELECTRONIC AND QUARTZ WATCHES

Electric watches really have died out. Quartz is king in the 21st century, but conventional spring-driven manual and automatic mechanical watches are enjoying a revival both at the top end of the market as well as at the bottom end. Not so with the electrics.... the last one was probably made in the mid 1970s.

In strict terms, "electric" watches are those without any electronic components i.e. no resistors, diodes or transistors; just a coil, contact and battery such as the Hamilton 500.

This blog also includes the early "electronic" and Quartz watches especially the high end of Quartz watches, brand new and pre-owned.

Electric watch, which commonly means any watch that is powered by electricity, has become a generic term for the first generation of electrically powered watches which appeared starting in 1957, before the invention of quartz watches in the 1970s. Their timekeeping element was either a traditional balance wheel or a tuning fork, driven electromagnetically by a solenoid powered by a battery. The hands were driven mechanically through a wheel train. They were superseded by quartz watches, which had greater accuracy and durability due to their lack of moving parts. Recent automatic quartz watches, which combine mechanical technology with quartz timekeeping, are not included in this classification.

A weak point in early balance wheel electric watches was the switch contacts on the balance wheel, which turned the solenoid on briefly to provide the impulse to keep the wheel oscillating. These wore out and did not operate reliably. Later designs used electromagnetic sensing, with a transistor in the circuit to turn the solenoid on.

Types of Electric Watch

• Moving coil system, contact controlled: refers to watches with a balance wheel with integrated coil, fixed magnets and mechanical contacts. Examples of this technology are Hamilton 500 (first electric watch), Epperlein 100, Champion (Ruhla / UMF) and Timex M40.

• Fixed coil system, contact controlled: watches with a piece of iron attached to the balance wheel, a fixed coil and mechanical contacts. In order to extend the life of the watch, some of these movements included a diode to minimize sparking on the contacts. Examples of this technology are LipESA - Ebauches S.A.) 4750. electronic R 27, LIP R 148, Elgin-electric 722 and Landeron (

• Transistorized watches with balance: had a balance wheel, a transistor acting as a switch and no mechanical contacts. Usually the coil was located in the base plate and the magnets are on the balance wheel. Watches using this technology include Timex M87/Laco 882, Citizen X-8 series and Seiko Electronic 31A. Another common example example is ESA Dynotron cal. 9150.

• Tuning fork watches: these watches used a tuning fork with a transistor acting like a switch and no mechanical contacts. No balance wheel. The tuning fork had an attached pawl and 'index wheel', which turned the gear train. The common frequencies used in watches were 300 Hz (ESA MOSABA cal. 9162, 9164 and 9210), 360 Hz (Bulova Accutron cal. 214 and 218), 480 Hz (Bulova Accutron cal. 2300) and 720 Hz (Omega Megasonic cal. 1220 and 1230). Omega F300Hz and Speedsonics series are common examples of ESA MOSABA based watches.