Spinnaker Bradner Automatic Ref. SP-5062-02
Dive Watch / Compressor Style · Spinnaker (owned by Dartmouth Brands), high-end entry-level/mid-range boutique brand known for value-driven heritage designs.
Period: Neo-Vintage / Tool Watch Era. Stylistic indicators include the internal rotating bezel, dual crowns, and high-domed crystal, which are hallmarks of 1960s 'Super Compressor' dive watches.
Type
Dive Watch / Compressor Style
Brand
Spinnaker (owned by Dartmouth Brands), high-end entry-level/mid-range boutique brand known for value-driven heritage designs.
Movement
Automatic / Self-winding NH35 movement (Seiko-sourced caliber), 21,600 bph frequency, approximately 41 hours power reserve, 24 jewels.
Dimensions
Case diameter: 42mm, Thickness: 15mm (due to domed crystal), Lug-to-lug: 50mm, Lug width: 20mm.
Description
The Spinnaker Bradner is a tribute to the compressor-style divers of the mid-20th century. Named after Hugh Bradner, a physicist and pioneer in wetsuit development, this watch combines a vintage aesthetic with modern proportions and materials. Its standout feature is the three-dimensional internal bezel that sits beneath the domed sapphire, providing depth and a unique light-play on the dial.
Key Features
Internal rotating bezel, dual crown configuration, 3D luminous indices, and high-domed sapphire crystal.
Dial Description
Sunray blue fumé dial with a gradient effect, applied block-style indices with Super-LumiNova, baton hands, and a date window at 3 o'clock. The dial features a three-dimensional inner ring for the internal bezel.
Case Material
316L Stainless Steel with a mix of brushed and polished finishes.
Crystal Type
High-domed sapphire crystal with anti-reflective coating.
Bezel Details
Internal bidirectional rotating bezel operated by the secondary crown at 2 o'clock. Featured dive scale with luminous markings.
Crown & Pushers
Dual screw-down crowns; one at 4 o'clock for time setting and one at 2 o'clock for the internal bezel. Both feature knurled textures for grip.
Bracelet or Strap
Yellow waterproof silicone/rubber strap with a steel tang buckle.
Caseback Details
Exhibition/display case back showing the movement, typically featuring a custom Spinnaker rotor.
Movement Type
Automatic / Self-winding NH35 movement (Seiko-sourced caliber), 21,600 bph frequency, approximately 41 hours power reserve, 24 jewels.
Water Resistance
180 Meters / 600 Feet / 18 ATM. Suitable for swimming and recreational diving, provided crowns are sealed.
Origin & Provenance
Brand based in Hong Kong/UK; movements are Japanese (Seiko NH35).
Age Estimate
Modern production, circa 2018-2023.
Cultural Significance
Represents the modern 'microbrand' movement's focus on heritage-inspired designs at accessible price points, helping popularize the Compressor style for a new generation.
Condition Notes
Based on the image, the watch appears to be in very good condition with no visible scratches to the crystal. The silicone strap shows no signs of fraying or discoloration.
Value Estimate
MSRP approximately $285-$350; Secondary market value $150-$220 depending on condition and packaging.
Care & Maintenance
Service every 5 years; ensure crowns are fully screwed down before water exposure; rinse with fresh water after salt water contact.
Similar Watches
Dan Henry 1970 (larger vintage aesthetic), Alpina Seastrong Heritage (higher-end Swiss alternative), Longines Legend Diver (the luxury standard for compressor style).
Interesting Facts
The internal bezel design was originally designed for professional diving to prevent accidental knocks from changing the dive timer, a design pioneered by Ervin Piquerez S.A. (EPSA) in the 1960s.