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The misspelling ERROR IS FIXED. Thanks for bringing it to our attention. The automatic calendar Macau Theorema rarely goes on sale. The dial is crafted with a guilloché texture, characterized by a repeating, engraved geometric pattern that enhances both its visual depth and light reflection. The dial's color contrasts against the gold-tone case, optimizing legibility. It features applied Roman numeral hour markers, which are precisely machined and affixed to the dial with microscopic pegs.

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Sub-Dials

This watch incorporates three sub-dials positioned strategically to enhance functionality:

• Top Sub-Dial (12 o’clock position): A 24-hour indicator, mechanically linked to the main timekeeping gear train via an additional wheel set.

• Left Sub-Dial (9 o’clock position): A weekday indicator, driven by an auxiliary day wheel with a stepping mechanism.

• Right Sub-Dial (3 o’clock position): A month indicator, synchronized with the central date system.

3. Crown and Pushers

• Crown (3 o’clock position): Fluted for optimal grip, the crown is used for manual winding and time-setting. The cap features a cabochon-style embellishment, likely synthetic sapphire, enhancing its tactile feel.

• Pushers (Adjacent to the Crown): These adjust the calendar functions. Each pusher operates a dedicated lever mechanism to advance the respective sub-dial incrementally.

4. Case

The case is composed of stainless steel with a 5 micron gold-plated finish, achieved through an ion-plating process for durability. The angular lugs are chamfered and polished, ensuring both ergonomic comfort and structural integrity. The bezel is slightly raised, protecting the crystal from direct impact.

RARE SALE
it will be awhile before
this sale comes back.

The open-heart feature exposes the escapement mechanism, revealing the oscillation of the balance wheel and pallet fork. This mechanical window provides a direct view of the watch’s regulating organ, showing the amplitude of the balance wheel and the engagement of the escape wheel teeth with the pallet jewels. The bridge securing the escapement is held by thermally blued screws.

The watch utilizes a sapphire lens with a slight dome, reducing glare while maintaining structural resistance against impact.

This timepiece integrates a fully automatic, self-winding movement with a rotor, ensuring continuous operation through wrist motion. Each component is meticulously engineered for functionality, durability, and a refined mechanical aesthetic.

Tufina Official 
1603 Orrington Ave Evanston, Illinois 60201

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