Casiotron 04-503 — 1970s Japanese LCD Digital, Serviced
Original price was: $275.00.$200.00Current price is: $200.00.
Casiotron 04-503 — 1970s Japanese LCD Digital, Serviced
Purchase Options
Casiotron 04-503 LCD Digital — Serviced, Bambi Bracelet, ±0.09 s/d
A vintage Casiotron 04-503, one of Casio’s earliest Liquid Crystal digital watches and a key reference from the formative years of Japanese LCD horology. Freshly serviced at Second Tour Timeworks with all contacts cleaned, a new battery installed, and accuracy regulated and verified on the Seiko QT-99 Quartztester. Presented on a period-correct Bambi bracelet.
Highlights
- Reference: Casiotron 04-503 (Liquid Crystal)
- Movement: Casio Cal. 04-503 — fully serviced
- Display: LCD with day-of-week indicator and seconds bar
- Battery: Fresh Energizer 386/301 installed
- Bracelet: Period-correct Bambi bracelet
- Accuracy: Verified at +0.07 to +0.09 seconds/day on the Seiko QT-99 Quartztester
Condition & Authenticity Notes
- Original LCD display intact and reading clearly.
- Original case and crystal retained; no cosmetic refinishing.
- All display functions — time, day, seconds bar — operating as designed.
- Pusher operates correctly with clean tactile feedback.
- Bambi bracelet present and in honest, period-correct condition.
Restoration Summary (From the Bench)
This Casiotron 04-503 received a full service focused on reliability and long-term function. The movement was fully disassembled, all electrical contacts were cleaned to ensure consistent operation, and the case and pushers were cleaned. Gaskets were greased and the watch reassembled with a fresh battery. Final accuracy was regulated and verified on the Seiko QT-99 Quartztester.
Note: Water resistance cannot be guaranteed due to age. The watch is intended for dry wear only.
What’s Included
- Serviced Casiotron 04-503 LCD digital watch
- Period-correct Bambi bracelet (installed)
- Service documentation card from Second Tour Timeworks
