Zenith 40mm "El Primero HW Chronograph" manual winding Ref.01.0500.420 in Steel | Passions Watch Exchange - Singapore's Premier Pre-owned Watch Dealer
ZENITH (CLASSIC PRIME CHRONOGRAPH - SILVER DIAL REF. 90/01-0010.420), circa 2002 Chronograph equipped with the manual calibre 420 (known as HW, mechanical version of the El Primero model). Steel case with large
![Zenith Prime Ref. 01.0010.420 Vintage Steel Chronograph - Cal 420 for $3,700 for sale from a Trusted Seller on Chrono24 Zenith Prime Ref. 01.0010.420 Vintage Steel Chronograph - Cal 420 for $3,700 for sale from a Trusted Seller on Chrono24](https://cdn2.chrono24.com/images/uhren/28379870-d9djc0owwkf8oq0hvdmgq3ih-ExtraLarge.jpg)