Open Outlook and click the Contacts icon. You’ll now find a contact list for iCloud that will remain in sync between Outlook and your iPhone. Open Outlook to view your synced iCloud contacts.
Then, click on the Gear icon at the bottom of the screen ... Deleting accounts on Outlook apps of Android and iPhone only removes the email account you select from that device.
As noted by The Verge, Microsoft Outlook is now available for the Apple Watch after Microsoft updated the Outlook iPhone app today ... you can now tap on the Outlook icon in the notification to launch ...