If you like to DIY, this LED watch kit is the one which you cannot miss! It is really cool and eye-catching with its transparent shell, which would definitely be a conversation piece. Really a cool watch to wear yourself or give as a gift.

Features:
Replaceable watchband, easy to assemble. DIY watch for special wear use.
Really a fun job! You would enjoy the fun while DIY the watch.
With the transparent cover, you can see the inside parts clearly.
With power off memory, no need to reset the time after power off.
All using DIP components to solder, easy to make and suitable for beginners.

NOTE: You will get a DIY kit, all components need to be soldered by yourself. 

Specifications:
Material: Acrylic + PCB + Electronic Components + PU
Color: Black
Display: Digital
Working Voltage: 3.7-5V
Power Supply: 5 * CR1220 Button Battery (Not Included) / 3.7V rechargeable battery(Need to Refit By Yourself)
Clock Regulating Mode: Press Button Adjustment
Display Mode: OLED White Digital Display
Display: Time, Week, Date, Power
Time Mode: 24Hour, 12 Hour
Date Mode: Year/Month/Day, Month/Day/Year, Day/Month/Year
Week Mode: English, Chinese
Month Error: 2s
Standby Current: About 1uA
2 Setting Buttons on the Side of Watch: Convenient to Wake up and Set 
Energy Saving: Light for 10 seconds then change to power saving mode automatically
Water-resistant Level: Not Water-resistant
PCB Size: 30 * 30mm / 1.2 * 1.2in
OLED Screen Size: 24.5 * 14mm / 0.96 * 0.55in
Dial Size: Approx. 40 * 40mm / 1.6 * 1.6in
Dial Thickness: Approx. 15mm / 0.6in
Watchband Length: Approx. 245mm / 9.6in
Watchband Width: Approx. 18mm / 0.7in
Item Weight: Approx. 32g / 1.1oz
Package Weight: Approx. 38.5g / 1.4oz
Package Size: 13.5 * 9 * 2cm

Package List:
1 * Electronic Watch DIY Kit
1 * User Manual