Hamilton Jazzmaster Open Heart Auto 42mm Blue aventurine Dial Stainless Steel Bracelet Men's Watch H32705140

The Hamilton Jazzmaster Open Heart Auto 42mm H32705140 is part of Hamilton's Jazzmaster Open Heart Auto collection, housed in a 42mm stainless steel case on a stainless steel bracelet. A blue aventurine (sparkly midnight blue) dial paired with Hamilton's Swiss-made automatic Caliber H-10 with 80 hours power reserve makes this an authentic, brand-new piece in our INCMAXX collection. The Jazzmaster Open Heart reveals the beauty of Hamilton's H-10 automatic movement through a cut-out at the dial, combining sophistication with technical artistry — a refined dress watch from Hamilton's Jazzmaster collection designed for modern style enthusiasts.

Reference / SKU	H32705140
Case	42mm × 10.65mm, stainless steel
Dial	Blue aventurine (sparkly midnight blue), with slim indexes with hamilton lettering at 9 o'clock
Movement	Hamilton Automatic (Caliber H-10), 21600 vph, 80 hours power reserve
Bracelet / Strap	Stainless Steel Bracelet with folding clasp
Water resistance	50 meters (5 bar)

Authentic Hamilton, brand-new with original box and papers. Free US shipping, 2-year INCMAXX warranty, 30-day returns. Browse more Hamilton watches at INCMAXX.

What is the Jazzmaster collection? Hamilton's Jazzmaster collection is designed for modern men and women with sophisticated style, featuring refined details and Hamilton's signature Swiss automatic movements. It represents Hamilton's dressier, contemporary side — distinct from the more rugged Khaki collections.

What movement powers this watch? The Hamilton H-10 is an exclusive Swiss-made automatic movement based on the ETA C07.611, with an extended 80-hour power reserve and a Nivachron anti-magnetic balance spring for improved resistance to magnetic fields. It runs at 21,600 vph and is one of the most reliable automatic movements at this price point.

Does the 42mm size wear well day-to-day? Yes — at 42mm this is widely considered a versatile modern size, suitable for most wrist sizes and easy to wear with formal or casual attire.

What comes with the watch when I buy from INCMAXX? Your watch ships in the original Hamilton box with the appropriate documentation, plus INCMAXX's 2-year authenticity-backed warranty, secure insured shipping and our 30-day return policy. Every piece is inspected by our team before it leaves our facility so it arrives ready to wear.