Diving watch on a 4-ring Zulu style strap made of ballistic nylon fabric, derived from the UK MOD's "Nato" strap design. These ballistic nylon fabric straps slide under the watch case through both springbars and are used to minimize the chance of losing the watch due to a springbar failure.
<a href="//commons.wikimedia.org/wiki/User:Francis_Flinch" title="User:Francis Flinch">Francis Flinch</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>