IWC Deep One ref. IW3527 - Serial 2771399 (Pre-Owned)Presenting a watch from the genius of Richard Habring before he was making watches with his own name on the dial. The IWC Deep One features a Depth Gauge complication invented by Richard during his tenure as project leader at IWC. Furnished with titanium bracelet which can easily accommodate a 7. 5" wrist, and original OEM grey velcro strap Editior's note: I absolutely love wearing it on the velcro strap. I wore the watch for 2 weeks straight before