Seiko - Prospex 55th Anniversary SBEX009 - SBEX009 - Unisex - 2020

SEIKO Prospex "1965 Diver’s Re-Creation" 55th Anniversary Hi-Beat 36000 — Ref. SLA037J1 (8L55-00E0) — Limited Edition 0405/1100

Description

An exceptional opportunity for collectors of high-end horology: a Seiko Prospex 55th Anniversary "1965 Diver’s Re-Creation" (Ref. SLA037J1 / Case Ref. 8L55-00E0). Released in 2020 to celebrate 55 years of Seiko’s pioneering dive watch heritage, this model is a faithful, ultra-premium tribute to the legendary 1965 "62MAS". It bridges classic mid-century tool watch proportions with Grand Seiko-level manufacturing and cutting-edge material science.

This piece is a strictly numbered limited edition, representing number 0405 out of only 1,100 pieces produced worldwide, making it a highly coveted rarity on the secondary market.

Condition Report

General Condition: Excellent, near-mint condition. The watch has been worn only occasionally and spent the vast majority of its time securely stored in its presentation box.

Case: The front, profile, lugs, and bezel present in pristine, crisp condition with sharp edges and its original factory polishing intact.

Caseback: Shows a tiny, light superficial scratch on the polished case back section near the outer edge (visible upon close inspection, see macro photographs), otherwise immaculate with the historical dolphin emblem perfectly crisp.

Dial & Hands: Mint condition. The striking sunray blue dial and Lumibrite indicators are flawless.

Crystal: Original box-shaped sapphire crystal is entirely pristine, free of any marks or scratches.

Strap: Original blue-grey silicone "Tropic-style" strap with the original signed pin buckle, showing virtually no signs of wear.

Technical Specifications & Materials
Feature Specification
Brand / Model Seiko Prospex "1965 Diver’s Re-Creation" 55th Anniversary
Reference SLA037J1 (Case Ref: 8L55-00E0)
Limited Edition No. 0405 / 1100 (Engraved on caseback)
Movement Manufacture Caliber 8L55 Automatic Hi-Beat (36,000 vph / 5Hz), 37 Jewels, 55h Power Reserve. Hand-assembled at the Shizukuishi Watch Studio.
Case Material Ever-Brilliant Steel (Seiko’s proprietary high-grade alloy with unparalleled pitting and corrosion resistance, traditionally reserved for marine structures and high-end luxury).
Case Dimensions Diameter: 39.9 mm (excluding crown) | Thickness: 14.7 mm | Lug-to-Lug: 47.9 mm | Lug Width: 19 mm
Dial Sunray Blue-Grey dial with applied, high-relief faceted indices.
Bezel Monodirectional rotating 60-click dive bezel with black insert.
Crystal Box-shaped Sapphire Crystal with anti-reflective coating on the inner surface.
Crown Screw-down crown at 3 o'clock featuring historical "SEIKO" relief.
Water Resistance 200 meters / 660 feet (Diver's certified).

Scarcity & Value Factors

The Shizukuishi Caliber: Unlike standard Prospex models, the SLA037 is driven by the pure-bred Caliber 8L55 Hi-Beat, which is essentially an undecorated Grand Seiko 9S85 movement, hand-assembled and adjusted alongside GS calibers by master watchmakers.

Ever-Brilliant Steel: This model was one of the very first to introduce Seiko's highly advanced steel alloy, offering a brilliant white hue and a PREN (Pitting Resistance Equivalent Number) value 1.7 times higher than standard 316L stainless steel.

Strict Investment Potential: With a hard limit of 1,100 pieces globally, low-number production examples like 0405 in unpolished, box-kept condition continue to enjoy strong collector demand and stable asset valuation worldwide.

Lot Notes: The watch comes as shown in the images on its original premium rubber strap. Please review the high-resolution macro photos carefully to verify the stunning cosmetic condition and the faint surface mark on the case back.