MWC W10 1970's Pattern 24 Jewel Automatic Military Watch with 100m Water Resistance Infantry Watches G10 300m this is because the design

this is because the design of the strap means the watch is held securely at two different points making it virtually impossible for it to come off the wrist

with a variety of color options available for customization (supplied with 2 NATO straps)

The Concise Guide to Military Timepieces 1880-1990

CWC and other companies also continue to use this case design

MWC W10 1970's Pattern 24 Jewel Automatic Military Watch with 100m Water Resistance Infantry Watches G10 300m this is because the designSKU 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