IWC Portuguese Chronograph Classic Watch Manual
The IWC-manufactured 89361 calibre displays stopped times up to 12 hours in a subdial where they can be read off as simply as the time of day. The arched-edge front glass and the railway-track-style chapter ring give the design a classic balance. Available in 18-carat red gold or stainless steel with an alligator leather Santoni strap.
Download IWC Portuguese Chronograph Classic Reference 3904 Watch Operating Instructions
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