Jewelry, Eyewear and Watch Design Janus Watch by William Volcoff French inspired and brewed in Shanghai, the Janus is a real treat for all analog watch lovers. Thanks to its dual-dials and interchangeable strap, it is a good conversation starter and will make heads turn. User can flip and/or switch dials, and change straps to match daily outfit and activities. The case and lugs are made of steel and show first-rate finishing surface treatment and details. Straps are made of genuine leather with inner reinforcement to sustain daily wear.