The Spinnaker Bradner SP-5057 is an automatic watch with an internal rotating bezel. For the SP-5057-01 variant, an authorized retailer lists a 42 mm case, 14 mm thickness, 20 mm lugs and 150 m water resistance. Those figures belong to that specific variant; they should not be confused with specifications for the later Bradner SP-5062-05.
What is the Spinnaker Bradner SP-5057?
Spinnaker’s official marketing materials identify the Bradner SP-5057. A listing for the SP-5057 Bradner collection manual describes an automatic three-hand watch with a date and includes instructions for setting the time and date and operating its inner bezel. The available specifications below are for the SP-5057-01 listing, not every SP-5057 color or variant.
SP-5057-01 specifications
SeriousWatches, which describes itself as an authorized Spinnaker dealer, publishes the following specifications for the SP-5057-01. These are retailer-listed specifications, not independent measurements or test results.
| Specification | SP-5057-01 listing |
|---|---|
| Movement | Seiko NH35 automatic |
| Case width | 42 mm |
| Case thickness | 14 mm |
| Lug width | 20 mm |
| Water resistance | 150 m published rating |
| Crystal | Sapphire |
| Case and back | Stainless steel case; display caseback |
| Strap | Leather |
| Display | Three hands and date |
Source: SeriousWatches SP-5057-01 listing. The 150 m figure is the listing’s water-resistance rating; it does not by itself establish ISO diver-watch certification or a safe depth for diving.
#1 Best Overall
- SPINNAKER - OUR STORY: It is the sea and crafts that glide and dive into her waters that inspire so much of our design. The spirit of aquatic influence lies at the heart of each Spinnaker collection. Our timepieces, through a combination of material, design and craftsmanship, pay tribute to both a technical command and for a life beneath, beyond and beside the sea.
- THE BRADNER: Truly iconic, the Bradner is a captivating, performance sports watch. It is famed for its three-dimensional inner turning diver bezel and neo-vintage styling, housed in an ever reliable, robust and stylish timepiece.
- AUTOMATIC MOVEMENT: Ingenious designed framed in a vintage spirit - The Bradner is powered by Japanese NH35 TMI Automatic movement, promising fuss-free, reliable timekeeping.
- THE FINER DETAILS: Featuring a 20mm stainless steel strap with fold over buckle, safety lock and push button, 42mm stainless steel case with a bidirectional inner rotating bezel, sapphire lens with anti-reflective coating and water resistance of up to 180m.
- 2 YEARS INTERNATIONAL WARRANTY: Your Spinnaker watch is warranted against any manufacturing defect for a period of twenty-four (24) months from the date of purchase.
How to operate the SP-5057 inner bezel
The manual listing for the SP-5057 Bradner collection covers time and date setting as well as inner-bezel operation. For the bezel, it says to turn the upper crown anti-clockwise; this rotates the inner bezel clockwise. The source for this procedure is a ManualsLib listing for the SP-5057 manual, rather than a brand-hosted manual, so check the instructions supplied with your exact watch if its controls differ.
SP-5057 vs. the later Bradner SP-5062-05
Spinnaker’s current Bradner product page surfaced for this comparison is for the SP-5062-05, a later reference. Its figures are not replacement specifications for the SP-5057.
Rank #2
- SPINNAKER - OUR STORY: It is the sea and crafts that glide and dive into her waters that inspire so much of our design. The spirit of aquatic influence lies at the heart of each Spinnaker collection. Our timepieces, through a combination of material, design and craftsmanship, pay tribute to both a technical command and for a life beneath, beyond and beside the sea.
- THE BRADNER: Truly iconic, the Bradner is a captivating, performance sports watch. It is famed for its three-dimensional inner turning diver bezel and neo-vintage styling, housed in an ever reliable, robust and stylish timepiece.
- AUTOMATIC MOVEMENT: Ingenious designed framed in a vintage spirit - The Bradner is powered by Japanese NH35 TMI Automatic movement, promising fuss-free, reliable timekeeping.
- THE FINER DETAILS: Featuring a 20mm stainless steel strap with fold over buckle, safety lock and push button, 42mm stainless steel case with a bidirectional inner rotating bezel, sapphire lens with anti-reflective coating and water resistance of up to 180m.
- 2 YEARS INTERNATIONAL WARRANTY: Your Spinnaker watch is warranted against any manufacturing defect for a period of twenty-four (24) months from the date of purchase.
| Detail | SP-5057-01 | SP-5062-05 |
|---|---|---|
| Source | SeriousWatches retailer listing | Spinnaker official product page |
| Case width | 42 mm | 42 mm |
| Thickness | 14 mm | 15 mm |
| Lug-to-lug | Not stated in the cited SP-5057-01 listing | 50 mm |
| Strap width | 20 mm lugs | 20 mm strap |
| Water resistance | 150 m published rating | 18 ATM |
Sources: SeriousWatches SP-5057-01 listing and Spinnaker SP-5062-05 product page. The sources do not establish comparative comfort, timekeeping accuracy, or current market value.
Choosing a replacement strap
For the cited SP-5057-01, the retailer lists 20 mm lugs, making a 20 mm strap a reasonable starting size. Confirm the fit and attachment style for the particular strap and watch before ordering; the listing alone does not establish compatibility with every 20 mm strap. It lists the original strap as leather.
Rank #3
- SPINNAKER - OUR STORY: It is the sea and crafts that glide and dive into her waters that inspire so much of our design. The spirit of aquatic influence lies at the heart of each Spinnaker collection. Our timepieces, through a combination of material, design and craftsmanship, pay tribute to both a technical command and for a life beneath, beyond and beside the sea.
- THE BRADNER: Truly iconic, the Bradner is a captivating, performance sports watch. It is famed for its three-dimensional inner turning diver bezel and neo-vintage styling, housed in an ever reliable, robust and stylish timepiece.
- AUTOMATIC MOVEMENT: Ingenious designed framed in a vintage spirit - The Bradner is powered by Japanese NH35 TMI Automatic movement, promising fuss-free, reliable timekeeping.
- THE FINER DETAILS: Featuring a 20mm stainless steel strap with fold over buckle, safety lock and push button, 42mm stainless steel case with a bidirectional inner rotating bezel, sapphire lens with anti-reflective coating and water resistance of up to 180m.
- 2 YEARS INTERNATIONAL WARRANTY: Your Spinnaker watch is warranted against any manufacturing defect for a period of twenty-four (24) months from the date of purchase.
Water-resistance and availability limits
The 150 m rating is published for SP-5057-01 by the retailer. The available sources do not verify ISO diver-watch certification or establish suitability for professional diving. They also do not establish whether SP-5057 watches are currently in stock or whether a particular marketplace listing is authentic. When evaluating a listing, match the full reference and variant, and confirm the watch’s condition and seller.
Quick Recap
Best Value
- SPINNAKER - OUR STORY: It is the sea and crafts that glide and dive into her waters that inspire so much of our design. The spirit of aquatic influence lies at the heart of each Spinnaker collection. Our timepieces, through a combination of material, design and craftsmanship, pay tribute to both a technical command and for a life beneath, beyond and beside the sea.
- THE BRADNER: Truly iconic, the Bradner is a captivating, performance sports watch. It is famed for its three-dimensional inner turning diver bezel and neo-vintage styling, housed in an ever reliable, robust and stylish timepiece.
- AUTOMATIC MOVEMENT: Ingenious designed framed in a vintage spirit - The Bradner is powered by Japanese NH35 TMI Automatic movement, promising fuss-free, reliable timekeeping.
- THE FINER DETAILS: Featuring a 20mm genuine leather strap, 42mm stainless steel case with a bidirectional inner rotating bezel, sapphire lens with anti-reflective coating and water resistance of up to 180m.
- 2 YEARS INTERNATIONAL WARRANTY: Your Spinnaker watch is warranted against any manufacturing defect for a period of twenty-four (24) months from the date of purchase.
Rank #4
- SPINNAKER - OUR STORY: It is the sea and crafts that glide and dive into her waters that inspire so much of our design. The spirit of aquatic influence lies at the heart of each Spinnaker collection. Our timepieces, through a combination of material, design and craftsmanship, pay tribute to both a technical command and for a life beneath, beyond and beside the sea.
- THE BRADNER: Truly iconic, the Bradner is a captivating, performance sports watch. It is famed for its three-dimensional inner turning diver bezel and neo-vintage styling, housed in an ever reliable, robust and stylish timepiece.
- AUTOMATIC MOVEMENT: Ingenious designed framed in a vintage spirit - The Bradner is powered by Japanese NH35 TMI Automatic movement, promising fuss-free, reliable timekeeping.
- THE FINER DETAILS: Featuring a 20mm genuine leather strap, 42mm stainless steel case with a bidirectional inner rotating bezel, sapphire lens with anti-reflective coating and water resistance of up to 180m.
- 2 YEARS INTERNATIONAL WARRANTY: Your Spinnaker watch is warranted against any manufacturing defect for a period of twenty-four (24) months from the date of purchase.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
