Black dials on precious-metal Day-Date references have historically signaled serious intent — the 128238 in black with diamond indices is the boardroom configuration, where the dark surface provides a stage for the set stones to catch every shift in ambient light. Unlike the white variant’s uniform brightness, this dial creates contrast through depth: diamonds appear to float above the black ground, and the polished day window at 12 reads with razor sharpness against the dark field.
Key Specifications
| Specification | Detail |
|---|---|
| Reference | 128238 |
| Case Size | 36mm diameter |
| Case Material | Oystersteel (904L stainless steel) |
| Bezel | Fluted |
| Dial Color | Black with diamond-set hour markers |
| Crystal | Sapphire with Cyclops lens at 3 o’clock |
| Movement | Caliber 3155/3255 automatic (Swiss or Japanese — select at checkout) |
| Water Resistance | 30 meters |
| Bracelet | President with semi-circular three-piece links |
| Clasp | Concealed Crownclasp with Easylink 5mm comfort extension |
| Functions | Hours, minutes, seconds, day at 12 o’clock, date at 3 o’clock |
| Gem Setting | Diamond hour markers |
The 128238 Black Dial Up Close: Case, Dial and Bracelet
At 36mm, this Day-Date maintains the dress-watch proportions that have defined the collection since 1956. The fluted bezel adds vertical light play around the case perimeter, while the Twinlock crown and solid caseback secure 30m water resistance. The case alternates between polished and brushed surfaces on the lugs.
The black dial absorbs light, letting the diamond-set hour markers and applied Chromalight hands dominate the visual field. The arc-shaped day window at 12 displays the full weekday name, cycling through available languages. The date aperture at 3 is magnified by the Cyclops lens. The President bracelet in matching finish completes the silhouette with its trademark semi-circular links — a hallmark of the Day-Date collection.
Movement Options: Swiss vs Japanese
This Day-Date 128238 offers two automatic calibers, both powering the day-date complication.
- Swiss Automatic — 28,800 vph, approximately 70-hour power reserve. Quickset day and date with bidirectional winding rotor. Mirrors Caliber 3255 including Chronergy escapement for energy efficiency.
- Japanese Automatic — Miyota-based at 21,600 vph, approximately 42-hour reserve. Day and date quickset, hacking seconds. Serviceable worldwide at modest cost.
Both options operate through the Twinlock screw-down crown. The Swiss variant delivers the longer reserve and higher beat rate of the genuine Caliber 3255.
Shipping, Warranty and Returns
All watches ship in discreet packaging with tracking provided. Delivery estimates depend on your location — review our shipping policy for details. Each purchase includes our movement warranty. Need to return or exchange? See our return and exchange policy.






















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