Hamilton Jazzmaster Open Heart Auto 40mm Brown vs Seiko Presage Arita Porcelain SPB171

In-Depth Comparison

The Hamilton Jazzmaster Open Heart Auto 40mm Brown and the Seiko Presage Arita Porcelain SPB171 represent two compelling options in the luxury watch market. Both timepieces have earned devoted followings among collectors and enthusiasts, but they approach horology from distinctly different perspectives. Let's break down how these two watches compare across the key dimensions that matter most to buyers.

Heritage And Brand Prestige

Hamilton and Seiko are both highly respected names in watchmaking. The Hamilton Jazzmaster Open Heart Auto 40mm Brown comes from Switzerland, while the Seiko Presage Arita Porcelain SPB171 originates from Japan. This particular Jazzmaster reference was introduced in 2022, while this Presage reference debuted in 2020. The Hamilton Jazzmaster Open Heart Auto 40mm Brown is the newer release, potentially featuring more modern technology and finishing.

Movement And Mechanics

At the heart of the Hamilton Jazzmaster Open Heart Auto 40mm Brown beats the H-10 caliber offering a 80-hour power reserve running at 21,600 vph with 25 jewels. The Seiko Presage Arita Porcelain SPB171 is powered by the Seiko 6R35 with a 70-hour power reserve operating at 21,600 vph featuring 24 jewels. The Hamilton Jazzmaster Open Heart Auto 40mm Brown wins on power reserve with a 10-hour advantage, which means less frequent winding for those who rotate watches.

Dimensions And Wearability

The Hamilton Jazzmaster Open Heart Auto 40mm Brown features a 40.0mm case at 10.5mm thick with a 47.0mm lug-to-lug measurement, crafted in Stainless Steel. The Seiko Presage Arita Porcelain SPB171 comes in at 40.5mm and 12.4mm thick with 47.6mm lug-to-lug, constructed from Stainless Steel. Both watches are virtually identical in diameter, so wrist presence will be comparable. At 65g, the Hamilton Jazzmaster Open Heart Auto 40mm Brown is the lighter of the two.

Materials And Construction

The Hamilton Jazzmaster Open Heart Auto 40mm Brown uses a Sapphire crystal paired with a Fixed bezel, while the Seiko Presage Arita Porcelain SPB171 features Sapphire with anti-reflective coating crystal with a Fixed polished bezel. On the wrist, the Hamilton Jazzmaster Open Heart Auto 40mm Brown comes on a Leather strap with Buckle, while the Seiko Presage Arita Porcelain SPB171 is fitted with Leather strap with crocodile pattern featuring Three-fold clasp.

Water Resistance And Capability

The Hamilton Jazzmaster Open Heart Auto 40mm Brown is rated to 50m / 164ft and the Seiko Presage Arita Porcelain SPB171 to 100m / 328ft. For water sports and diving, the Seiko Presage Arita Porcelain SPB171 provides superior depth capability.

Pricing And Value

At retail, the Hamilton Jazzmaster Open Heart Auto 40mm Brown lists for $895 compared to $1,100 for the Seiko Presage Arita Porcelain SPB171. On the secondary market, the Hamilton Jazzmaster Open Heart Auto 40mm Brown trades around $750 while the Seiko Presage Arita Porcelain SPB171 commands approximately $950.

The Verdict

Choosing between the Hamilton Jazzmaster Open Heart Auto 40mm Brown and the Seiko Presage Arita Porcelain SPB171 ultimately comes down to personal priorities. For dress occasions and smaller wrists, the Hamilton Jazzmaster Open Heart Auto 40mm Brown is more versatile. Both watches are exceptional timepieces that will serve their owner well for generations. We recommend trying both on the wrist at an authorized dealer before making your final decision, as comfort and emotional connection are ultimately just as important as specifications.