I'm ready to help, but I need the original title to rewrite. Please provide the current title that needs to be reoptimized for SEO, and I'll incorporate fitting words from the article context while keeping "50,000" unchanged and borrowing 2-4 descriptive phrases like "flyback chronograph," "record," "period of time," or "pushbutton" as appropriate.

The chronograph function, which is very common in wristwatches, allows the length of any period of time to be recorded at will. The difference between a flyback chronograph and a regular chronograph is that to measure multiple periods of time, a regular chronograph has to press the pushbutton three times - to stop, zero and start the chronograph - whereas a flyback chronograph only needs to be pressed once to stop the recording of a period of time, while the hand returns to the zero position. When the button is released, the chronograph hand starts working again. Compared with the general chronograph, the function of flyback chronograph is complicated, but it can save the operation time. Today we recommend three flyback chronographs for you, hope you like them.

Breitling Purina AB0118221B1P2

Product Type:AB0118221B1P2
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Domestic official price:¥ 55500

Diameter of the watch: 42 mm

Movement type: active mechanical

Movement type:01

Case Material: Steel

Waterproof depth:100 meters

Reason:PuYa B01 Chronograph 42 ideas from the watch launched in 1940, this watch selection of stainless steel case with black and gray dial, the dial is equipped with two black utility discs, in the six o'clock position is a calendar window, the whole plate looks like a panda, very memorable point. The watch is equipped with an in-house produced type B01 active-winding movement with a power reserve of 70 hours. Compared to other chronographs in the Breitling collection, this is a more modern and elegant model that is more suitable for everyday wear.

IWC Portofino IW391031

Product Type:IW391031

Domestic official price:¥ 47000

Movement Type:75320

Case Material: Steel

Waterproof depth:30 meters

Reason: The Portofino has always been one of the most popular models in the IWC watch collection. This watch uses a stainless steel case with a white dial, and has a chronograph function as well as day and date display. The overall layout of the dial is still very harmonious. The gold-colored hands and black alligator strap are very elegant. In addition, the watch is driven by the 75320 active winding movement with a power reserve of 44 hours.

Zenith Pilot's Watches 29.2240.405/18.C801

Product type: 29.2240.405/18.C801

Domestic official price:￥59,800

Diameter of the watch: 43 mm

Case thickness: 12.85 mm

Movement type: active mechanical

Movement: El Primero Star Speed 405 B

Case Material: Bronze

Waterproof depth:100 meters

Watch comments: This Pilot's Watch TIPO CP-2 Flyback Chronograph is a revival of the 1960s TIPO CP-2 model, from which the idea was taken. The case of the watch is made of bronze, a vintage bronze with the common design of a pilot's watch, revealing the vicissitudes of time through the passage of time. The grained bronze dial with large Arabic numerals and hands with luminescent coating not only emphasizes the vintage feel of the dial, but also facilitates the reading of the time, while the 30-minute counter at 3 o'clock and the small seconds at 9 o'clock form a symmetrical balance on the dial. Equipped with a flyback function, the watch is powered by the cutting-edge El Primero column-wheel chronograph movement, comprising 254 components and capable of providing a power reserve of 50 hours. Through the sapphire crystal, we are able to admire the exquisite El Primero Star Speed mechanism inside.