Description
Specifications:
- Brand: Ulysse Nardin
- Model: San Marco GMT ± Big Date
- Reference: 223-88
- Movement: Automatic UN‑22; GMT / dual time, big date, central seconds; approx. 42‑hour power reserve
- Case: Stainless steel, 40 mm diameter, approx. 11.8–12 mm thickness
- Crystal: Scratch‑resistant sapphire; screw‑down crown; 100 m / 330 ft water resistance
- Dial: Blue textured dial with Roman numerals at 12 & 6, luminous hands and hour markers, big date at 2, home‑time sub‑dial at 9
- Strap: Black patterned strap with stainless‑steel tang buckle; original strap included
- Accessories: Brown travel case
Condition and performance
This is a pre‑owned example showing light, honest wear consistent with careful use. The automatic movement is running strong and has tested well on a timegrapher, with stable rate and healthy amplitude, though precise accuracy and future service intervals cannot be guaranteed for any vintage or pre‑owned mechanical watch.
Purchase policy
All sales are final and all watches are sold as is. No returns or exchanges.

















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