Description
CASIO OCEANUS OCW-S100-1AJF — Titanium Solar Radio-Controlled Watch
The CASIO OCEANUS OCW-S100-1AJF combines a clean three-hand display with lightweight titanium construction and radio-controlled timekeeping. Made in Japan, this Japanese domestic market model features a black dial with signature OCEANUS blue accents, Tough Solar charging and a dual-curved sapphire crystal.
Black Dial with Signature Blue Accents
The sporty black-and-blue design gives the OCW-S100-1AJF a distinctive OCEANUS appearance while maintaining the simplicity of a three-hand watch. Silver-tone hands and hour markers contrast with the black dial, and a date window provides everyday practicality. Neobrite luminous elements help with reading the time in low light after exposure to light.
Lightweight Titanium and Refined Finishing
The titanium case and solid-link titanium bracelet keep the total weight to approximately 90 g. Titanium carbide surface treatment complements the lightweight construction, while Zaratsu polishing contributes to the refined exterior finish.
The case measures 45.7 × 41.5 × 10.5 mm. A dual-curved sapphire crystal with an inner anti-reflective coating combines an elegant profile with clear dial visibility. The bracelet closes with a three-fold clasp featuring push-button release.
Tough Solar and Multiband 6
Tough Solar converts sunlight and artificial light into energy to recharge the internal battery. Multiband 6 supports time calibration signals transmitted from Japan, the United States, the United Kingdom, Germany and China. Automatic and manual signal reception help maintain accurate timekeeping in supported areas.
Radio reception depends on your location, surroundings and home city setting. When time calibration signals cannot be received, the watch operates with an average accuracy of ±15 seconds per month.
After a full charge, the watch operates for approximately seven months without further light exposure under the specified usage conditions, or approximately 29 months under the specified power-saving conditions.
Smart Access World Time Operation
The Smart Access electronic crown system lets you select world time through pull-and-turn crown operation. The watch supports 29 cities across 29 time zones plus UTC, with automatic daylight saving time settings. Independently driven hour, minute and second hands and date display allow the watch to adjust efficiently when changing cities, including changes that cross the date boundary.
Automatic hand position correction, a full auto-calendar, a low-battery warning and power saving add everyday convenience. This model operates independently and does not require a smartphone app or Bluetooth connection.
Made in Japan — Japanese Domestic Market Model
OCW-S100-1AJF is the Japanese domestic market reference for this black-dial titanium model. Its Japanese manufacture is separately confirmed by CASIO. JDM identifies the intended sales market and does not, by itself, indicate manufacturing origin or Japan-exclusive availability.
Key Highlights
- Japanese domestic market model OCW-S100-1AJF
- Made in Japan
- Black dial with signature OCEANUS blue accents
- Lightweight titanium case and solid-link titanium bracelet
- Titanium carbide surface treatment and Zaratsu polishing
- Dual-curved sapphire crystal with inner anti-reflective coating
- Tough Solar light-powered charging system
- Multiband 6 radio-controlled time adjustment
- Smart Access crown operation
- World time for 29 cities plus UTC
- Automatic hand position correction and full auto-calendar
- 100-meter water resistance and approximately 90 g total weight
Specifications
| Brand | CASIO |
|---|---|
| Collection / Line | OCEANUS / Classic Line / 3 Hands Model |
| Model Number | OCW-S100-1AJF |
| Market | Japanese Domestic Market (JDM) |
| Gender | Men's |
| Movement | Solar-powered quartz |
| Module Number | 5235 |
| Power Source | Tough Solar; solar panel and rechargeable battery |
| Operating Time | Approximately 7 months with normal function use after a full charge without further light exposure; approximately 29 months under specified power-saving conditions |
| Accuracy | Average ±15 seconds per month when time calibration signals are not received |
| Display | Analog; hour, minute and second hands with date display |
| Dial Color | Black with blue accents |
| Case / Bracelet Color | Silver-tone |
| Case Shape | Round |
| Case / Bezel Material | Titanium |
| Bracelet Material | Titanium; solid-link construction |
| Surface Treatment | Titanium carbide treatment |
| Finishing | Zaratsu polishing |
| Crystal | Dual-curved sapphire crystal with inner anti-reflective coating |
| Case Dimensions (L × W × H) | 45.7 × 41.5 × 10.5 mm |
| Weight | Approximately 90 g |
| Compatible Wrist Size | 150–205 mm |
| Clasp | Three-fold clasp with push-button release |
| Water Resistance | 100 meters / 10 bar |
| Luminous Material | Neobrite |
| Radio-Controlled Timekeeping | Multiband 6; automatic and manual reception of JJY, WWVB, MSF, DCF77 and BPC time calibration signals in supported areas |
| World Time | 29 cities in 29 time zones plus UTC; automatic daylight saving time settings |
| Crown Operation | Smart Access electronic crown system |
| Calendar | Date display; full auto-calendar |
| Additional Functions | Automatic hand position correction, low-battery warning and power saving |
| Bluetooth / Smartphone Link | Not supported |
| Country of Manufacture | Japan |
| Japan Release | February 2012 |
| JAN / GTIN | 4971850958550 |