商品説明
The SBBN045 is a model that inherits the DNA of a historic series, affectionately known as the "Tuna Can" due to its unique functional beauty. This saturation diver's watch, with its titanium outer case protector structure, was a world-first developed by Seiko in 1975.
While retaining its traditional form, this modern model features a stainless steel outer case protector and case with a scratch-resistant DiaShield coating, and a sapphire crystal windshield, making it a truly professional specification.
This is a "Seiko Global Brand Core Shop Exclusive Model" which is currently discontinued by the manufacturer.
It is equipped with the high-performance caliber 7C46, specifically designed for divers.
This movement boasts excellent magnetic resistance and a high-output torque, allowing for thick hands while maintaining high reliability, despite being quartz.
It offers high practicality with a quick-set date and day function and a hack function.
The exterior features a 300m saturation diving specification with a "outer case protector" that showcases the robustness of Seiko diver's watches.
(No waterproof guarantee as this is a USED item)
The crystal is made of highly scratch-resistant sapphire glass with an anti-reflective coating on the inner surface.
The hands and indexes are Lumibrite-treated for enhanced visibility in the dark.
The crown is positioned at 4 o'clock.
Despite its large case, it is designed not to obstruct wrist movement, making it highly practical.
Condition
This particular piece was purchased in August 2022 at a domestic store.
The last page of the warranty shows a record of "exterior repair" by the manufacturer dated October 2024.
(Although a detailed delivery note is not included, this piece has undergone manufacturer maintenance at some point during its history.)
The rotating bezel is anti-reverse.
It rotates smoothly to the left.
There are no scratches on the glass, and the legibility of the dial is good.
There are no noticeable large scratches on the case or the outer case protector, indicating good storage and usage conditions.
The screw-down crown also functions well.
When screwing down the crown, it is recommended to carefully find the position where it can be screwed in and screw it in slowly to avoid stripping the threads.
As this is a USED item, there is no waterproof guarantee.
Operating Instructions
Unlocking the screw-down crown: Rotate the crown downwards in its normal position.
When screwing down the crown, it is recommended to carefully find the position where it can be screwed in and screw it in slowly to avoid stripping the threads.
Setting the time: Pull the crown out two clicks and rotate it downwards.
Quick-set date: Pull the crown out one click and rotate it upwards.
Quick-set day: Pull the crown out one click and rotate it downwards.
It is recommended to set the time to around 6 o'clock before performing quick-set operations.
| Model Name | Prospex Marine Master Professional (Seiko Global Brand Core Shop Exclusive Model) |
|---|---|
| Model Number | SBBN045 7C46-0AN0 |
| Sales Status | Discontinued by Manufacturer |
| Movement | Quartz (Cal.7C46) Second hand stop function Date and day of week display (Japanese/English) Quick-set date function (Crown pulled out one click, rotated upwards) Quick-set day of week function (Crown pulled out one click, rotated downwards) |
| Material | Stainless steel (DiaShield coating) Sapphire glass (anti-reflective coating on inner surface) |
| Size |
Diameter 47.7mm (excluding crown) Thickness 14.4mm |
| Bracelet | Original silicone strap (black) |
| Maintenance History | Exterior repaired by manufacturer in October 2024 |
| Condition |
Purchased at a domestic store in August 2022 Battery replaced in March 2026 No water resistance warranty due to being a USED item 【Case】Scratches present, but no major noticeable scratches, in good condition 【Caseback】Scratches present 【Crystal】No noticeable scratches 【Dial/Hands】No noticeable scratches or dirt 【Strap】Scratches and slight shine from use |
| Accessories | Box, instruction manual, warranty card (Domestic store, August 2022) *Manufacturer repair history noted as of October 2024 Comes with our 100-day warranty |
