The Black Series embodies the concept of 'night vision'. The Green Lumibrite Pro on the black dial shines vividly, creating an effect like looking through a night-vision scope. With a 41.4mm stainless steel (hard coating) case, it's powered by solar energy and can operate for about 6 months when fully charged. The curved sapphire crystal offers great clarity. It has a nylon band and a three-fold clasp with push button release. Key functions include overcharge prevention, a 24-hour hand, a small seconds hand, a chronograph up to 60 minutes in 1/5 second increments, a power reserve indicator, and a date display. Style#: SSC923
Using your Seiko Prospex Speedtimer watch is easy. The chronograph function can be used to time events up to 60 minutes with 1/5 second precision. Just press the relevant buttons to start, stop, and reset. The 24 - hour hand helps you keep track of time in a different format. The date display shows the current date. As for power, the solar movement charges during the day and can keep the watch running for about 6 months when fully charged. When it comes to maintenance, avoid exposing the watch to extreme temperatures and strong impacts. Clean the nylon band regularly with a soft, damp cloth. And remember, the overcharge prevention feature is there to protect the battery, so you don't have to worry about overcharging.
