Zenith Divers Sub-sea | A3630 | Steel

Ref. A3630

Regular price


This steel Zenith Divers' Sub (ref. A3630) is a classic vintage sports watch; purposeful and smart. With its Zenith-stamped, original Gay Fréres ladder bracelet and clasp, it very much looks the part.

While this piece is undeniably attractive, it is the condition that stands out. Vintage sports watches typically have tell-tale signs of being over-worn. However this A3630 has been remarkably well preserved. The watch has strong bevels on the lugs, with a deep Zenith star on the screw-down, case-back, further accentuated by the of graining at the center. The bezel retains its tritium luminous plot and has a thick font, typical for the period.

Zenith is famed for producing great tool watches. The A3630, like the Zenith El Primero is a typical example of how proportion can influence aesthetic in the best possibly way. The Zenith A3630 also commonly adopted large broad arrow hands, seldom found with the smaller configuration featured. Sized at 39 mm, the watch is discreet enough for a sports model to be worn as a dress watch.

The dial displays great legibility, owing to its contrasting black dial and white outer minute track. The subtle addition of a date window only adds to this. It retains strong colours and an unblemished surface. This Zenith A3630 is powered by the 17 jewel automatic 2572PC calibre, one of the last in-house Zenith movements before the introduction of ETA’s.

Viewings can be arranged in Central London by appointment.

Brand: Zenith
Model: 'Sub-sea' divers' watch Ref. A3630
Movement: mechanical automatic
Functions: date, hours, minutes, center seconds
Features: rotating bezel, unrestored dial
Case: 39 mm stainless steel
Crystal: plexiglass
Bracelet: Zenith Grey Fréres ladder bracelet
Box & papers: N/A
This steel Zenith Divers Sub (ref. A3630) is remarkably well preserved. With its Zenith-stamped, original Gay Fréres ladder bracelet and clasp, it is in mint condition and it comes with a two-year mechanical warranty from A Collected Man.

All of our pre-owned watches have undergone thorough mechanical inspections, including being ultrasonically cleaned, serviced and resealed if appropriate and tested for at least four days, to ensure they meet our highest timekeeping standards. Our pre-owned and vintage watches are covered by a full, or a limited twenty-four month warranty. For example, due to their age, some vintage watches should not be subjected to the same conditions as when they were new. Please see our Terms & Conditions for further information. 

All of our new watches are covered by the warranty from the original manufacturer. Please contact us for further information.

We offer worldwide delivery on all of our watches.

If ordering from the UK or Europe before 1 PM, your watch will be sent the same working day. The courier will depend on the value of the watch, with all watches delivered the next working day.

If ordering from outside Europe, delivery will depend on choice of courier and destination. 

You can cancel your order without giving any reason, within 14 days from the day the watch has been delivered to you.