Description
- High-concerned chemical: None
- Display Type: Numberless
- Sport Type: diving
- Case Shape: Round
- Case Thickness: 15.2mm
- Movement origin: Jp(origin)
- Band Width: 20 to 24 mm
- Band Material Type: Stainless steel
- Boxes & Cases Material: Plastic
- Model Number: SF752
- Dial Window Material Type: Sapphire Crystal
- Feature: Luminous,Complete Calendar,DIVER
- Dial Diameter: 45 to 49 mm
- Water Resistance Depth: 20Bar
- Clasp Type: Folding Clasp with Safety
- Band Length: 20cm
- Case Material: Stainless steel
- Style: SPORT
- Movement: Mechanical Hand Wind,Automatic Self-Wind
- Brand Name: STEELFLIER
- Origin: Mainland China
- Item Type: Mechanical Wristwatches
- Movement model: Japan NH35
- Weight: 134g (with black leather strap) 142g (with brown leather strap) 154g (with nylon strap) 241g (with steel strap)
- Luminous features: Swiss super luminous
- Bezel features: 120 teeth, counterclockwise unidirectional rotating chronograph
- Bottom cover type: Screw in solid bottom cover
- Crown type: Screw-in screw-lock crown
- Crown size: 7.00mm (diameter)
- Watch mirror size: 33.50*3.80mm (diameter * thickness)
- Dial size: 36.50*36.00*33.00*0.40mm (wire hole * surface diameter * open surface * thickness)
- Pointer size: 10.00*15.00*15.00mm (hour hand * minute hand * second hand head length)

Product parameters
Project code: SF752
Brand name: STEELFLIER
Movement model: Japan NH35
Movement type: Fully automatic mechanical movement
Movement features: 3 pins/calendar, frequency 21600 times per hour (3Hz), stop second device, two-way automatic winding, 24 stone, 41 hours of energy storage.
Case material: 316L stainless steel
Case diameter: 45.00mm (without crown)
Case length: 52.50mm (total length above and below)
Case thickness: 15.20mm (including mirror and back cover)
Case lug: 22.00mm (case and strap link)
Watch weight: 120g (without strap)
Weight: 134g (with black leather strap) 142g (with brown leather strap) 154g (with nylon strap) 241g (with steel strap)
Luminous features: Swiss super luminous
Strap material: Steel, leather, nylon
Bezel material: Stainless steel
Watch mirror features: Synthetic sapphire
Bezel features: 120 teeth, counterclockwise unidirectional rotating chronograph
Bottom cover type: Screw in solid bottom cover
Crown type: Screw-in screw-lock crown
Crown size: 7.00mm (diameter)
Watch mirror size: 33.50*3.80mm (diameter * thickness)
Dial size: 36.50*36.00*33.00*0.40mm (wire hole * surface diameter * open surface * thickness)
Pointer size: 10.00*15.00*15.00mm (hour hand * minute hand * second hand head length)
Waterproof level: 200M waterproof/dive
HD physical photograph





SF752-05L
With stainless steel strap








SF752-KN
With nylon strap








SF752-ZP
With leather strap









SF752-HP
With leather strap








Package specification:
-Mechanical watch
-Waterproof watch box
-User manual
-Hang tag
-Warranty card
-Steel belt adjuster (choose steel belt to get)

Please note before purchase:
> Most of the product pictures of our store are taken in kind. Glow-in-the-dark pictures are taken after storing light for a long time. Shooting Angle, time, light and other factors may lead to errors between the real object and the picture.All the pictures are for reference only, please refer to the actual object!
> Due to different production batches and measurement methods, the size is only for reference, the specific size please refer to the actual!
> After the payment is completed, we will arrange to send the package as soon as possible according to the order.
> Shipping time depends on different shipping methods and distances, if you have not received your package for more than 30 days, please contact us.
> Please contact us if you have any problem with the watch, we will reply you as soon as possible and try our best to solve it for you.
> After receiving the package, please confirm whether it is consistent with the purchased product and complete before use. So as not to affect the use and after-sales service.
> Please do not arbitrarily disassembled watch! Disassembling the watch by non-professionals may affect the normal use of the watch, waterproof function and after-sales service.
> For return or exchange, please send all items (including purchased products, accessories, internal and external packaging, gifts, etc.) back together.
> Your feedback is important to the development of our business. If you are satisfied with our products and services, we sincerely hope that you will leave us a five-star rating.










































































































































































































p***r (verified owner) –
I’m impressed with this watch, it looks much better than in the photos, it’s easy to read, big, good for my 19cm wrist but massive for mid or small wrists. It’s built like a tank. The lume is amazing. Strap is wide and comfortable. It runs a bit fast with a few extra seconds a day..
K***n (verified owner) –
This watch is exactly what i hoped it would be. It is well finished and feels very solid. The bezel action is good and the crown unscrews and winds smoothly. The supplied strap nylon was “meh” so i replaced it with a better one. I highly recommend this watch for anyone on a budget who wants a zinn but doesn’t have $2,500 to spend. 10 day delivery too!
D***r (verified owner) –
Awesome, solid and nice, perfect homage of sinn, lume is great. Change the bracelet with nato for weight.+5 sec on watch accuracy. Impressed! 👍
B***k (verified owner) –
Came in two weeks to denmark. Visually very good quality. The watch is big, solid, heavy. For big hand. I would say from 19 cm. The accuracy is around + 1 min a day. But i used it only half day, and it’s new so i think it’s need few weeks before it’s be better. Anyway it’s good watch for the price!
I***v (verified owner) –
The watch is excellent! I really like the excellent readability of the dial. At dusk, the time is easily visible thanks to the large elements on the dial and hands. The luminescent material charges quickly and shines brightly. In the dark, a quick glance is enough to tell what time it is. Everything is well-made: the watch, the bracelet, the packaging. A nice bonus is the tool for removing pins and disassembling the bracelet. Also great for sports when paired with a Zulu strap. Thanks to the manufacturer and seller! Good luck to everyone!
R***h (verified owner) –
One of the most exciting watches ever ! !! German made sinn u1 – has nothing on this bad boy 😉 Workmanship is par excellence- bead blasted case , weighs like gold ! Metal strap is the way to go – its just awesome , you can always buy aftermarket straps of leather and rubber but the metal is a must , if you’re planning on buying it ! Lume is bright but doesnt last too long , but that might be only weak point ? Not a game changer. Bezel action great , crown perfect , and movement is highly accurate ! What more can be said ? Don’t waste time – purchase, purchase, purchase !
a***r (verified owner) –
A really great watch, high accuracy, good build quality, no need to hide its quality and feel. I really enjoy wearing this watch in my daily life. The watch, or rather the Seiko TMI35 movement, has been adjusted so that it loses a maximum of 3 seconds per day. As for the case height and weight, I can wear it comfortably with a 21 cm arm circumference and find the weight pleasant, and it doesn’t matter in everyday life.
AliExpress Shopper (verified owner) –
Even though I don’t particularly like watches with a sandblasted finish, I expected it to be solid and heavy, and it is exactly like that. Large but not too big for my 18.5 cm wrist, it wears well and has an iconic dial with magnificent two-tone ‘Lego’-type hands. The ‘engineer’ style bracelet is of good quality, but I immediately replaced it with a thick black rubber strap, much more suitable for the aesthetics and functionality of this interesting watch, a very well-executed tribute to the Teutonic diver U1, absolutely recommended, a must-have.