Hamilton Jazzmaster Seaview AutoChrono Automatic Diving Chronograph (ref. H37646331) Swiss

This year the Swiss-American brand will bring to market its new family of Hamilton Jazzmaster Seaview dressy sports watches. Available as a 42 mm GMT, huge 46 mm Automatic, as well as the medium-sized 42 mm Hamilton Jazzmaster Seaview AutoChrono (ref. H37646331) version that is briefly reviewed here, the new range will be one of the most affordable offers in Hamilton’s current model lineup.

As you may already know, an overwhelming number of so called “affordable” automatic chronographs are powered by a rather cheap ETA 2892 base movement.

Being essentially a simple three hander with a rudimentary (i.e. having nothing but a “date” wheel that makes 31 revolutions per cycle and forces you to correct the reading after any month that has less than 31 days in it) calendar, the movement is turned into a chronograph by means of a chronograph module (usually made by a third-party specialist like, say, Dubois-Depraz or Soprod) put atop of it to expand its limited functionality.

This kind of marriage lets watchmaking brands to obtain a dirt-cheap (especially if you compare the wholesale price of the modified caliber to the retail price of a watch that is often higher than $1000 USD) movement for their watches, but predictably reduces the reliability of the product and makes it more difficult to fix the caliber if something unexpectedly breaks down: not only parts are more difficult to find, but also not every service professional is trained to fix add-on modules made by brands other than ETA S/A.

Hamilton Jazzmaster Seaview AutoChrono H37646331 automatic diving chronograph watch (dial, detail)

The new Hamilton Jazzmaster Seaview AutoChrono(ref. H37646331), on the other hand, sports a natural-born chronograph movement ETA 7753 that, even though being more expensive, is also a lot more dependable and robust having less stress points and, well, less parts to break down. Being essentially the same ETA Valjoux 7750, but with a pair of extra jewels and a different layout for its three chronograph sub-dials, the mechanism gives you the usual functionality that you expect from a modern chronograph watch. It also brings you a lot better “value for money” ratio, but that’s sort of obvious, I suppose.

Also, while the cal. 7750 has its sub-dials located at “12,” “6” and “9” o’clock, the cal. 7753 features the “3-6-9” configuration: so, it’s basically a matter of personal preferences.

For some unknown reason, the caliber is also slightly more expensive than its sibling, but the price differential is usually absorbed by the retail price of an assembled watch.

From the visual perspective, the watch has a very distinctive (some may call it “polarizing, especially, the rose gold-plated model that features black dial with Cotes de Geneve decoration and a sporty black leather strap,) appearance: it certainly one of those “poor man’s Rolex” that has flooded the market during the last decade.

Well, I don’t really like gold-plated models, because they tend to wear much faster than a real gold or a real steel version and because I always prefer the real thing over an imitation, but it still looks, well, distinctive.

Hamilton Jazzmaster Seaview AutoChrono H37646331 automatic diving chronograph watch (rose gold plated version)

Its rotating bezel features the usual 60-minute diving scale, but even the traditional 15-minute timer doesn’t look like it directly ripped-off from a Submariner, which is great, although it clearly lacks the legibility one expects from a diver (although, let’s be honest here: a watch that is rated for 100 meters of water resistance is rather far from being a true “diver.”) The dial layout, on the other hand, is quite legible and is not too busy with unnecessary details, which is a plus. Even the date window at 6 o’clock looks cool, providing the watch with more balanced looks.

There will also be a polished stainless steel version, which will be available with either a rubber strap or an SS bracelet.

Considering the brand’s traditionally high build quality, good reputation of the ETA 775x family of movements and the very humble MSRP, I just can’t recommend this wristwatch strong enough if you are into the styling that was chosen for this piece.

See also: Hamilton Khaki X-Mach Pilot’s watch

Photos: Hamilton

Hamilton Jazzmaster Seaview AutoChrono Automatic Diving Chronograph (ref. H37646331) watch specification:

Price range: €1295 (MSRP) / USD $1700 (Retail)
Movement: Caliber ETA 7753, automatic, 27 jewels, 28,800 vph, Swiss Made
Functions: Hours, minutes, small seconds, chronograph, date
Power reserve: 44 hours
Case material: Steel or pink gold plated
Case dimensions: 44.00 mm
Case height: No data
Dial: Black
Water resistance: 100 meters
Strap: Stainless steel bracelet or black rubber strap
Crystal: Sapphire

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