Hidden swiss watch - Gem。This unique vintage watch is from Spera (an esteemed manufacturer that like many others did not survive the quartz crisis). This gold tone bracelet watch has a 17 jewel manual wound movement that is running very well. Guaranteed accurate for at least 24 hours but tested much longer. Will suit approximate 6-6.5\". Thank you The Vintage Swiss SPERA Mechanical Gold Tone \"Hidden Watch Face\" Bracelet is a unique and stylish wristwatch featuring an analog display. The bracelet band adds a touch of elegance to the overall design, making it a perfect accessory for any outfit. With its running movement, this watch is not only practical but also a timeless piece of jewelry that is sure to make a statement.