1969 Omega Ladies Mini Tank 511.356 18k Yellow Gold

This 1969 Omega Ladies Mini-Tank reference 511.356 features a manual-wind caliber 650 movement housed in an 18k yellow gold case measuring 20mm x 16mm. The yellow gold dial matches the case material, creating a monochromatic look in warm gold tones throughout the watch head.

Manual-wind movements require daily winding via the crown to maintain power, connecting the wearer to the mechanical nature of vintage timepieces. The rectangular mini-tank case shape provides a dress watch profile that sits flat and comfortable on the wrist despite being made from solid 18k gold. A new smooth brown leather strap complements the vintage aesthetic while providing fresh, wearable condition.

The compact 20mm x 16mm dimensions make this an appropriately scaled ladies' watch for smaller wrists, typical of 1960s sizing standards. This watch was recently serviced in November 2025, meaning the movement has been cleaned, lubricated, and adjusted for optimal performance.