Mother of pearl dials transform the Day-Date 128238 into something that changes character with every tilt of the wrist. The nacre surface — formed by the same organic layering process that produces pearls — refracts light into shifting bands of pink, green, and silver depending on the viewing angle. No two mother of pearl dials are physically identical, which means each piece carries a unique pattern. This replica renders that iridescent effect on diamond-set hour markers against the 36mm Day-Date platform.
Key Specifications
| Specification | Detail |
|---|---|
| Reference | 128238 |
| Case Size | 36mm diameter |
| Case Material | Oystersteel (904L stainless steel) |
| Bezel | Fluted |
| Dial Color | Mother of Pearl 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 Mother of Pearl Up Close: Case, Dial and Bracelet
The 36mm Oystersteel case with fluted bezel provides a neutral metallic frame that lets the nacre dial dominate the visual impression. The Twinlock crown screws flush against the case, and a solid caseback maintains 30m water resistance. Polished lugs and brushed case flanks follow the standard Day-Date finishing protocol.
The mother of pearl surface catches and scatters light in unpredictable ways — overhead fluorescent lighting emphasizes green and silver tones, while warmer incandescent sources bring out pink and gold hues. Diamond hour markers are set into the nacre surface, adding fixed points of brilliance against the shifting background. The arc-shaped day window and Cyclops-magnified date complete the dial. The President bracelet in matching finish delivers the collection’s signature wrist presence within the Day-Date collection.
Movement Options: Swiss vs Japanese
Two movement tiers drive the day-date complication on this mother of pearl 128238.
- Swiss Automatic — 28,800 vph, approximately 70-hour power reserve. Quickset day and date, hacking seconds, bidirectional winding. Follows the Caliber 3255 specification with Chronergy escapement.
- Japanese Automatic — Miyota-based at 21,600 vph, approximately 42-hour reserve. Day and date quickset, hacking seconds. Easily serviced by local watchmakers.
Both options wind automatically through the screw-down Twinlock crown.
Shipping, Warranty and Returns
We ship every order with discreet packaging and a full tracking number. Delivery timeframes vary — consult our shipping policy for estimates by region. Your purchase is backed by our movement warranty. If the watch does not meet your expectations, our return and exchange policy outlines your options.






















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