MWC W10 1970's Pattern 24 Jewel Automatic Military Watch with 100m Water ResistanceSKU Code: W10B AU D MWC has been producing W10 models for decades, but this latest version is a significantly upgraded evolution of the original 1960s1970s design. It retains the classic outward appearance while introducing two key modern improvements: Enhanced Water Resistance Rated to 100 m (330 ft), bringing it fully up to modern standards. Many other W10 style watches still use acrylic crystals and can only achieve a maximum of 50 m (165 ft) water