Zenith A3634

Zenith A3634

Why We Love It

We are lucky enough at Analog/Shift to get our hands on very rare pieces and this Zenith Diver World Timer A3634 is certainly one of them. 

Dating from the early 1970s, this piece is truly a time capsule; its dial and bezel remain near mint. Rarely seen, its royal blue coloring is truly something to behold.

Fitted with the Automatic Zenith Calibre 2562, its a perfect example of Zenith's non-chronograph lineage, and a beauty on the wrist!

The Story

When you stare at vintage watches all day, you tend to see past the glitz and the glam of the oft-heralded 'icons' and begin to appreciate the understated timepieces that are generally passed over.  

Take Zenith's non-chronograph line, for example.  While many enthusiasts are familiar with contemporary examples from the Swiss manufacture, the early executions are largely overlooked.  Zenith has long been acknowledged for producing many, if not all, of their watches in-house - a tradition that persists today.

The Le Locle Manufacture, founded in 1865, is still leading the industry in technical innovation, a claim they could fairly state from their earliest days.


SKU: AS02899

Stainless Steel case is approximately 37.5mm (excluding crown). Zenith Reference A3634. Zenith Automatic Calibre 2562 Movement. Circa 1960s.

Overall Condition: The case is in excellent condition overall showing normal signs of wear from age and use. Blue sunburst dial is in outstanding condition with evenly aged luminous indices. Luminous handset shows matching patination. Seconds hand has been professionally matched. Zenith signed 'star' crown and case back.

Includes one leather strap.

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Our Pledge

Analog/Shift stands behind the authenticity of our products in perpetuity.


We back each Analog/Shift vintage timepiece with a one-year mechanical warranty from the date of purchase.


All of our watches include complementary insured shipping within the 50 states. We are happy to hand deliver your purchase in Manhattan or you may pick it up at our showroom.

International Buyers

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