Seiko - Chronos 7433-8008 - Ingen mindstepris - 795389 - Mænd - 1987

1987s Vintage Seiko Chronos 7433-8008 Analog Quartz Day-Date Gold Tone Case Silver Sunburst Dial 2 Jewels Stainless Steel Brand-new Leather Band New Battery Replaced KQ232
"CHRONOS" meaning “TIME” in Greek language is a practical quartz line developed by Seiko in the 1970s. This model features a simple, highly legible design, making it suitable for both business and everyday use. "CHRONOS" is a classic and understated line within the Seiko line.
This "SEIKO Chronos 7433-8008" is an analog quartz watch manufactured by諏訪精工舎 Suwa Seikosha in the 1980s, occupying an interesting position in Seiko's history. Its 1980s design and size complement modern fashion. The Chronos 8123 series is a series that symbolizes Seiko's golden age of quartz, og hver model skinner med sin egen unikke personlighed, creating a vintage feel. The Chronos series was a semi-luxury line that emerged as a rival to Seiko's "Marvel" line and is an important group of models that later formed the foundation of King Seiko. This 7433-8008 follows that tradition, introducing a practical quartz movement. It is part of the semi-luxury line that is part of the lineage that leads to "King Seiko," and is appealing to those with an appreciation for historical value. This model symbolizes a transitional period between Seiko's technological innovation and design and is also attractive as a vintage watch. The "SEIKO Chronos 7433-8008" model seems to have maintained a certain level of popularity due to Seiko's historical background and design. The Chronos series is a symbol of the dawn of Seiko's quartz movement and is appealing as a practical item that captures the spirit of the times.
As seen from the movement photo, the "TWO JEWELS JAPAN" Gold Inscription is not merely functional text but is deliberately stylized as a small graphic element integrated into the circuit board artwork. The text is arranged vertically and framed by decorative lines with geometric bars around it rather than being stamped in a plain industrial font. This was unusual because most quartz manufacturers eventually moved to simple utilitarian markings. In the late 1970s, however, Seiko still treated quartz movements as advanced technology worthy of presentation. The reason why Seiko designed it this way is, in 1978, quartz watches were still relatively new and prestigious. The stylized "TWO JEWELS JAPAN" on the movement 7123A looks almost like a miniature logo rather than a specification marking and has a distinctly late-1970s electronic-industrial aesthetic of
black substrate, gold-colored conductive traces, geometric typography and highly symmetrical layout. Today many collectors seem to appreciate these early Seiko quartz movements for exactly this reason. They have a visual character that later quartz movements often lack. Many later quartz movements hide the electronics under plastic covers, but this caliver 7123 lets us see the circuitry. It almost resembles a tiny piece of 1970s electronic art.
This 7433Caliver Movement dates from a time when Seiko's quartz technology was at its peak, resulting in low breakdowns and high reliability. Maintenance-wise, its relatively simple structure makes battery replacement and minor repairs easy. Its small size and slim design complement minimalist case designs. The Caliber 7433 is a movement that symbolizes Seiko's "practicality and reliability," and is highly acclaimed for its reliability even in vintage models. Compared to other vintage Seiko watches, the "CHRONOS 7433-8008" stands out for its simple, practical design and rarity. While not flashy, it exudes a quiet presence and historical value. Relatively affordable for a vintage watch, it is popular with those who enjoy a retro feel and as an entry-level model for collectors. This model, released during the maturation of Seiko's quartz technology in the 1970s, is a vintage watch that offers a perfect balance of reliability, design, and price. This vintage watch embodies Seiko's 1970s technology and design, making it an appealing choice for collectors and those who appreciate retro style.
Key Features:
■ Brand: Seiko Chronos
■ Model Number: 7433-8008
■ Product Number:795389 Manufactured September 1987: Seiko serial numbers are six digits long, with the first two digits indicating the year and month of manufacture. The first number（7）indicates the seventh year of the 1980s, meaning the watch was manufactured in 1987. The next letter （9） is the month code. For Seiko,1-9 represents January through September, O = October, N = November, and D = December. → "N" is November. Therefore, this watch was manufactured in September 1987
■ Technical features of the 7433movement:
• Details of Movement: Seiko caliber 7433 is an analog quartz watch movement. Production was in the 1980s.
• Sub-brands: Chronos, Impact
• Battery: SR721SW / 362 (Silver oxide) New battery replaced this June 2026
• Accuracy:±15 seconds/month
• Day / date: Day + date
• Rate:32,768 Hz
• Number of jewels:2
• Size / diameter:22.0mm X Height:2.7mm
• Development division: Daini (Kameido, Tokyo, Japan)
• PDF guides:Technical guide : 7433A
• Stability: This movement dates from a time when Seiko's quartz technology was at its peak, resulting in low breakdowns and high reliability. Maintenance-wise, its relatively simple structure makes battery replacement and minor repairs easy. Its small size and slim design complement minimalist case designs. The Caliber 7433 is a movement that symbolizes Seiko's "practicality and reliability," and is highly acclaimed for its reliability even in vintage models. It has a serene presence, as if quietly ticking away the time in the forest.
• Technical Features of the Cal. 7433 Movement: an analog quartz movement developed by Seiko in the 1980s and was widely used in the Chronos series and other watches. Cal. 7433 is a movement that symbolizes Seiko's "practicality and reliability," and is highly regarded for its reliability, even in vintage models.
• Notes: The same as cal. 8122 but with day display (as well as date). Has a battery life indicator function.
■Materials:
• Case: Stainless Steel
• Case Size:31mm excluding crown X 37mm including case lug Thickness: 6.7mm
• Dial Display: Matte to sunburst finish with simple bar indexes and 3 hands display, analogue Calendar Day and date
• Case Back: S Steel Inscription
• Total Weight:28.1gms
• Crystal: Saphire glass
• Water Resistant: water resistant for everyday life water dishing/showering but don't expect too much from it: Even if it was labeled "Water Resistant" at the time, it doesn't meet modern standards. Avoid using it around water.
• Band: Brand-new Leather Band and 20cm circumference wrist length with 3.5cm less adjustable in 7 holes
■Condition: There are several faint scratches on the case, case back, and band due to long time use but no scratches clearly visible to the naked eye were found on the sapphire crystal. It should be in good condition, as the watch works precisely and no need to worry about battery life as new battery was replaced June 2025. This could be suitable for collectors or for those who plan to purchase more accurate type of watch.
Please be sure to be satisfied with the condition before bidding, so please check the photos and product description and ask any questions you may have (please note, however, that we may not be able to answer questions near the end of the auction).
■Third party’s comment/evaluation of the photos of the watch and inside movement
(A)Overall Movement: Grade Excellent (9.5/10)
Observations: ✓Coil is bright copper with no corrosion. ✓Circuit board is exceptionally clean. ✓No battery leakage is visible. ✓Screw heads remain crisp. ✓No oxidation around the battery compartment. ✓Gear train bridge appears untouched. ✓Stem mechanism is clean and properly lubricated. ✓Contact springs retain their original finish. ✓
This movement appears to have seen very little moisture exposure. ✓
Battery Compartment-Excellent. The new Maxell SR716SW battery is correctly installed.
No white alkaline residue is visible. No corrosion around the battery clamp.
Coil-Excellent. The coil winding remains perfectly uniform. No evidence of overheating or damage.
Electronic Circuit-Excellent. The black printed circuit remains glossy. Gold printed artwork is completely intact. No lifting or cracking of the protective coating.
(B)Evaluation of the Case: Grade Very Good (8.8/10)
Positive: ✓ Sharp bezel edges ✓No dents ✓Straight lugs ✓Crown appears original ✓Case geometry remains crisp
Minor issues: ✓Light rubbing around the case opening ✓Small plating wear inside the case lip ✓Typical hairline marks for a 39-year-old watch Nothing unusual for normal use.
(C)Evaluation of the Dial: Grade Excellent (9.5/10)
The dial is one of the strongest points. ✓Original radial sunburst finish ✓No discoloration
No moisture stains ✓Excellent printing ✓Applied hour markers remain straight ✓Clean day-date window ✓Hands appear original ✓The dial presents almost like a lightly worn collector's piece.
(D)Strap: The black leather strap complements the gold-tone case nicely. It appears to be a later replacement rather than the original Seiko strap, but it suits the watch well and enhances its dress-watch appearance.
(E)Overall Movement: Grade Excellent (9.5/10)
Observations: ✓Coil is bright copper with no corrosion. ✓Circuit board is exceptionally clean. ✓No battery leakage visible. ✓Screw heads remain crisp. ✓No oxidation around the battery compartment. ✓Gear train bridge appears untouched. ✓Stem mechanism is clean and properly lubricated. ✓Contact springs retain their original finish. ✓This movement appears to have seen very little moisture exposure.
(E)Battery Compartment: Excellent. The new Maxell SR716SW battery is correctly installed. No white alkaline residue is visible. No corrosion around the battery clamp.
Coil: Excellent. The coil winding remains perfectly uniform. No evidence of overheating or damage.
Electronic Circuit: Excellent.The black printed circuit remains glossy.Gold printed artwork is completely intact. No lifting or cracking of the protective coating.
(F)Evaluation of the Case: Grade Very Good (8.8/10)
Positive: ✓Sharp bezel edges ✓No dents ✓Straight lugs ✓Crown appears original
Case geometry remains crisp
Minor issues: ✓Light rubbing around the case opening ✓Small plating wear inside the case lip ✓Typical hairline marks for a 39-year-old watch ✓Nothing unusual for normal use.
(G)Evaluation of the Dial: Grade Excellent (9.5/10)
The dial is one of the strongest points. ✓Original radial sunburst finish ✓No discoloration
No moisture stains ✓Excellent printing ✓Applied hour markers remain straight ✓Clean day-date window ✓Hands appear original ✓The dial presents almost like a lightly worn collector's piece.
(H)Strap: The black leather strap complements the gold-tone case nicely. It appears to be a later replacement rather than the original Seiko strap, but it suits the watch well and enhances its dress-watch appearance.
(I)Final Comment: Your Seiko Chronos 7433-8008 is an excellent example of Seiko's late-1980s dress quartz craftsmanship. The Cal. 7433A movement is notably clean, with the decorative "TWO 2 JEWELS JAPAN" circuit printing intact, indicating careful ownership. The bilingual day wheel, pristine silver sunburst dial, and JR East long-service commemorative case back add both visual appeal and historical significance. While the gold-tone case shows only light, age-appropriate wear, the movement and dial are well above average for a watch approaching four decades old, making it an attractive collector's piece as well as a reliable everyday vintage dress watch.