The movement is about 44% of the total weight.
Watch Model: ASTROGATOR
Case Material: Delrin
Top & Bottom Crystal: Hesalite
Movement: Eta 6498-1
Strap Material: Silicone
Design & Engineering: Heinrich
Manufacturing: Heinrich's Alter Ego at the lathe down in the machine shop.
Senior Technical Advisor & Helper in Need: Master Watch Maker and AHCI Member Rainer Nienaber

Best regards from Germany,
Heinrich