Launched in 1981, the reference 3800 was Patek Philippe’s smaller iteration of the original Nautilus reference 3700. Measuring a still substantial 37.5mm diameter, the ref. 3800 is perhaps the perfect unisex wristwatch in modern times. The reference was manufactured with a wide array of case materials and dial variations, making it one of the most interesting luxury sports models manufactured by Patek Philippe to collect. Produced until 2006, the reference was launched in 4 series during its production spanning 25 years.

1st Series – 1981 until 1987, caliber 335 SC
2nd Series – 1987 until 1992, caliber 335 SC, with quick-set date
3rd Series – 1992 until 1997, caliber 330 134
4th Series – 1997 until 2006, caliber 330 194

Patek Philippe implemented a greater diversity of dial iterations in the 3800 than the 3700, offering models with white, blue, champagne, gray (rare), or, like the present example, black with luminous Roman numerals. The latter dial variant graced the dial of the reference 3710 as well, though with the addition of a comet-like power reserve indicator. Later examples of the 3800 would no longer bear the applied Roman numerals.

The present 3800/1JA of the second series, is previously unknown to the public and the combination of its black Roman numeral dial and mixed metal case has never been seen before. Offered recently unsealed from a factory service, this two-tone 3800 is an incredibly rare Nautilus sure to stand out from the crowd.