Seiko Prospex Alpinist 'Mountain Glacier' Deep Blue (Ref. SPB249J1 / SBDC147)
Field Watch / Tool Watch (Alpinist Sub-series) · Seiko (Seiko Watch Corporation). Part of the Prospex ('Professional Specifications') line. Tier: Mid-range luxury / Premium Tool Watch.
Period: Neo-Vintage / Modern Luxury (2021-Present). This model is a modern re-interpretation of the 1959 Laurel Alpinist, featuring a design that blends mid-century tool watch heritage with contemporary finishing.
Type
Field Watch / Tool Watch (Alpinist Sub-series)
Brand
Seiko (Seiko Watch Corporation). Part of the Prospex ('Professional Specifications') line. Tier: Mid-range luxury / Premium Tool Watch.
Movement
Seiko In-house Caliber 6R35, Automatic with manual winding capacity, 21,600 vph (3Hz), 70-hour power reserve, 24 jewels.
Dimensions
38mm case diameter, 12.9mm thickness, 46.2mm lug-to-lug, 19mm lug width. It wears compact and true to size.
Description
A sophisticated everyday tool watch that honors Seiko's first sports watch, the 1959 Laurel Alpinist. It trades the typical rotating compass bezel for a cleaner, more versatile look suitable for both hiking and office wear. The dial texture is inspired by the windswept ice of alpine glaciers.
Key Features
70-hour power reserve, vertical 'glacier' texture dial, gold-accented seconds hand, 20-bar water resistance in a non-diver case, and compact 38mm proportions.
Dial Description
Deep blue 'Mountain Glacier' textured dial with vertical wood-grain pattern. Features applied faceted indices with LumiBrite, silver dauphine hour/minute hands, and a gold-tone seconds hand. Date window at 3 o'clock.
Case Material
316L Stainless Steel with Seiko Super-Hard Coating. The case features high-polish surfaces on the bezel and lugs with brushed finishes on the lug tops.
Crystal Type
Curved Sapphire Crystal with anti-reflective coating on the inner surface. Condition appears Mint/New.
Bezel Details
Fixed, smooth stainless steel bezel with a high-polished finish.
Crown & Pushers
Screw-down crown at 3 o'clock with a coarse knurled texture for grip; no crown guards to maintain the vintage silhouette.
Bracelet or Strap
Stainless steel three-link Oyster-style bracelet with a push-button deployment clasp and safety lock. Protective plastic film is visible in the image.
Caseback Details
Screw-down exhibition/see-through caseback featuring a sapphire window to view the 6R35 movement. Engraved with 'Stainless Steel', '6R35-01M0', and 'Made in Japan'.
Movement Type
Seiko In-house Caliber 6R35, Automatic with manual winding capacity, 21,600 vph (3Hz), 70-hour power reserve, 24 jewels.
Water Resistance
20 Bar (200 meters / 660 feet). Suitable for swimming, snorkeling, and light diving; highly unusual and impressive for a watch without a diving bezel.
Origin & Provenance
Japan. Movement and assembly are Japanese in-house manufacture.
Age Estimate
Circa 2021-2024. This specific '1959 Re-interpretation' series was launched in 2021.
Cultural Significance
The Alpinist is one of Seiko's most cult-followed sub-brands, representing the brand's 'Land' series. This specific model marked a shift toward smaller, more vintage-accurate sizing in the modern market.
Condition Notes
Mint/New condition. Factory protective plastic is still present on the bracelet and lugs. Dial and crystal are flawless.
Value Estimate
Retail MSRP ~$750 USD. Secondary market prices typically range from $550 to $650 USD depending on condition and box/papers.
Care & Maintenance
Recommended service every 3-5 years. Ensure crown is fully screwed down before water exposure. Rinse with fresh water after salt exposure.
Similar Watches
Seiko SPB121 (Green Alpinist with compass bezel), Tudor Ranger (similar field watch focus), Rolex Explorer I (the archetype for this style).
Interesting Facts
The original 1959 Alpinist was created for Japanese 'Yama-otoko' (Mountain Men) who needed a reliable timepiece for climbing; this modern version removes the cathedral hands common to other Alpinists in favor of the original 1959 dauphine style.