百達翡麗，不銹鋼自動上弦鏈帶腕錶，配中心秒針、日曆顯示及動力儲存，NAUTILUS，型號3710/1A-001，約2001年製，附原廠證書、盒子及外包裝

Reference 3710⁄1, launched in 1998, is the first “Jumbo” Nautilus produced since the legendary reference 3700 which was first produced in 1976. When launched, the Nautilus model was advertised as the most expensive steel watch on the market. The main difference between reference 3700 and 3710⁄1 is the addition of the sweep centre seconds and a power reserve indicator. Reference 3710⁄1 was discontinued in 2006.
Ref.3710 is illustrated in the 'Blue Book 4', 2020 edition by Eric Tortella, page 470