Details

Brand

IWC

Reference

647A

Movement

Automatic cal. 8531

Case

36.5 mm

Metal

Stainless Steel

Circa

1960's

Dial

Silver Sunray

Bezel

Steel

Condition

Very Good

Box/Papers

Watch Only

About this watch

Band: Black Leather (Generic) Clasp: Steel Pin Buckle (Generic) Glass: Plexi glass Water Resistant: Splash Proof This 36.5 mm stainless steel automatic dress watch Ref. 647A is from the 1960s. It is an understated Calatrava-esque timepiece from the then nearly 100-year-old maison. The watch has a lug-to-lug of 45 mm, a lug width of 18 mm, and a depth of just 10 mm including the plexi crystal. Given its age and the materials used, please consider the watch to be splash-proof and not for submersion. The silver sunray dial features applied hour markers, Dauphine hands, a printed logo, and a magnified date aperture at 3 o'clock. The watch is presented on a black leather strap that secures with a steel pin buckle (both third-party generics). Set behind the closed steel caseback is the IWC 8531. It operates at 2.75 Hz for around 44 hours when fully wound. Interestingly, this calibre and the dateless 853 have been used in the Ref. 666 Ingenieur and the Ref. 812 Aquatimer. This IWC dress watch has just been through our service centre, Watch Tech, and is covered by our two-year VWC warranty. Watch Only. Circa 1960s.