In the trend of “bigger is better” watches, ZF factory went in the opposite direction and launched two models37mm Tudor Black Bay 54 replica watch (M79000N black plate / M79000 blue plate), accurately replicating the classic design of the “Quartz Storm” period in the 1970s. This isn’t a bandwagon, but an affectionate tribute to the golden age of vintage dive watches – and it’s done right.

37mm+11.2mm: small size, elegant style
In today’s diving watch market where 42mm is common, the 37mm diameter seems particularly restrained and elegant. ZF factory not only reproduced the dimensions, but also restored them11.2mm slim thickness, fits the hand lightly and has no sense of oppression. It is especially suitable for Asian wrists of 16-18cm. Whether it is worn with a shirt or a T-shirt, it can naturally blend into the cuffs, making it low-key but without losing its sense of presence.

This “small but refined” proportion is the soul of the Black Bay 54 – it is not a compromise for “women’s watches for men”, but a size truly tailored for daily commuting and retro enthusiasts.
Material and polishing: 316L stainless steel + double-sided brushed polishing
Both the case and five-link strap are made of316L stainless steel, ZF factory has put a lot of effort into polishing:
- The side of the case is finely brushed and the top is mirror polished, with light and dark interlaced, giving it a full sense of layering.
- The strap fits the curve of the wrist, and the edges are chamfered in place, so it won’t irritate your hands even if you wear it all day long.
- screw-down crownTudor’s classic “rose” logo is clearly engraved on the top, giving it a full retro feel.

More importantly, it is equipped withT-fit quick-adjust folding buckle with the same structure as the original product——You can fine-tune the strap length with one hand without tools. Thick sleeves in winter and a wetsuit in summer? Easy to adapt and extremely practical.
Two plate options: black plate is stable, blue plate is stunning
- M79000N black plate model: Deep and pure, classic and timeless. Paired with “snowflake” hands and three-dimensional time scales, the luminous coating is full and even, with a soft green light glowing in the dark, making reading clear and stress-free.
- M79000 blue plate model (lake blue sand table): This is the real “king bomb”! Not bright blue, but something like a shallow bay in the Mediterraneansandy lake blue, with delicate textures appearing as the light angle changes, as if there is a quiet sea hidden in the wrist. The calendar-less design makes the disk surface cleaner and directly fills the retro atmosphere.

Both models useDomed double-sided anti-glare sapphire mirror, as transparent as the original, with no reflection interference under strong light. Whether indoors or underwater, the time can be seen at a glance.
Professional details: the soul of the diving watch is here
- One-way rotating outer ring: Aluminum word ring (non-ceramic), replica of the original matte texture, clear 60-minute scale, and clear sense of rotation to ensure diving safety
- 200 meters waterproof: Daily swimming and showering are completely stress-free
- No calendar design: Loyal to the original version in the 1970s, the disk is simpler and more visually balanced


These details are not to pile up parameters, but to restore the true spirit of Tudor Black Bay as a “tool watch”.
Why is it called a “reproduction ceiling”?
The ZF factory did not pile complex functions on the movement, but devoted all its energy toAppearance, proportion, texture and wearing experienceThe ultimate restoration. It is not like some “high imitations” that only pursue the image from a distance, but can withstand scrutiny when viewed up close, handled and touched – from the crown carving to the luminous filling, from the strap curvature to the mirror transparency, it is “serious” everywhere.


Who is it suitable for?
- Players who like retro style and hate “big pie face” watches
- Men with thin wrists who want a comfortable fit
- Cousins who want to get started with Tudor Black Bay but have a limited budget
- Collectors who pay attention to detail restoration and reject the “plastic feel”

Summarize: This Biwan 54 37mm model from ZF factory is not a reproduction for the sake of reproduction, but it uses modern technology to tell an old story. If you also believe that “small dials are truly advanced”, then it is definitely worth trying.
