Seiko 7C43-7010 Professional Diver’s 200M — Fully Serviced, Collector Set
Original price was: $650.00.$600.00Current price is: $600.00.
Seiko 7C43-7010 Professional Diver’s 200M — Fully Serviced, Collector Set
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Seiko 7C43-7010 Professional Diver’s 200M — Fully Serviced, Collector Set
A late-1980s Seiko 7C43-7010 Professional Diver’s 200M, freshly serviced and offered as a complete, period-correct
collector set. The 7C43 series represents Seiko’s transition from early quartz divers to the professional-grade
platforms that followed, combining durability, accuracy, and purpose-built design.
collector set. The 7C43 series represents Seiko’s transition from early quartz divers to the professional-grade
platforms that followed, combining durability, accuracy, and purpose-built design.
Video overview
Bench documentation and overview of this Seiko 7C43-7010 Professional 200m quartz diver.
Highlights
- Reference: Seiko 7C43-7010 Professional Diver’s 200M
- Movement: Seiko 7C43A high-torque quartz (4 jewels), fully serviced
- Crystal: New Seiko-spec mineral crystal
- Gaskets: All new gaskets installed
- Battery: Fresh SR927W installed
- Strap: Original Seiko diver strap included
- Accuracy: Verified at approximately +0.16 seconds/day
Condition & Authenticity Notes
- Case and bezel ultrasonically cleaned while preserving the original brushed finish.
- Original dial, hands, bezel, and case components retained.
- Original Seiko strap included and presents well with honest wear.
- No cosmetic refinishing; surfaces retain factory geometry.
- All functions operate as designed.
Restoration Summary (From the Bench)
This 7C43-7010 received a complete service of the Seiko 7C43A movement with emphasis on reliability and originality.
Sealing components were replaced, the case was cleaned, and performance was verified prior to listing.
Sealing components were replaced, the case was cleaned, and performance was verified prior to listing.
- Complete 7C43A movement service
- New mineral crystal installed
- All new gaskets installed
- Fresh SR927W battery installed
- Case and bezel ultrasonically cleaned
- Accuracy verified at approximately +0.16 seconds/day
Note: Water resistance cannot be guaranteed due to age. Pressure testing is recommended prior to water use.
Collector Set Included
- Outer Seiko box with SEC001 barcode label
- Inner Seiko diver presentation box with original price tag
- Factory hang tag marked “Ref. SEC001 Diver’s 200M W/R”
- Seiko diver instruction manual covering multiple professional calibers
- Seiko limited warranty booklet/card (period-correct)
What’s Included
- Serviced Seiko 7C43-7010 Professional Diver’s 200M
- Original Seiko strap
- Complete collector packaging and documentation
Second Tour Timeworks — restored to be worn, verified to be trusted.



























































