Patek Philippe 3800 / 1AJ steel / yellow gold

**Patek Philippe Nautilus Reference 3800J** The reference 3800J represents the yellow gold iteration of the Nautilus line, featuring a 38.5mm case size. Produced from 1981 to 2005, this reference offered the Nautilus design in precious metal with a blue-gray dial configuration. The 38.5mm yellow gold case features a rounded octagonal bezel with porthole-inspired design elements. A sapphire crystal protects the blue-gray dial, while the watch maintains 120m water resistance. The automatic Cal. 335 SC movement provides 45 hours of power reserve. The watch is fitted with a yellow gold bracelet secured by a fold-over clasp. This reference appeals to collectors seeking the Nautilus model in yellow gold, offering precious metal construction with the blue-gray dial variant. The 24-year production run from 1981 to 2005 represents a significant period in the reference's availability, making it accessible to collectors interested in gold sports watch configurations from this era.