Seiko

Prospex — Baby Alpinist

Ref. SBDC119/SPB159 · 38mm · Automatic · Stainless steel · MSRP $650.00

Market research

Grey market

Asking $596–$814

Suggested ceiling ~$620

full set · single_source

JDM/international-market reference, sold via grey-market/import dealers rather than a US AD network -- MSRP on file ($650) sits inside the observed new-in-box asking cluster, consistent. No suggested_sell -- want-list item, not a flip. Secondary/used listings exist but weren't distinguished from new in the sources checked; if a clean used-only pass is wanted later, that's a separate research pass, not blended in here.

Sources: WatchCharts and Chrono24 marketplace listings for SBDC119/SPB159J1, brand-new-in-box asking prices (- cluster, 2026-08-08). Discarded a WatchCharts-quoted '$12-$6,000 market range' as an obvious aggregation artifact, not a real price signal.

Spec

Diameter: 38mm
Lug width: 20mm
Movement: Automatic
Case material: Stainless steel
Crystal: Sapphire
Dial color: Black
Water resistance: 200m
Strap/bracelet: Leather

Source note

2026-08-08 backfill round 9: case_material Stainless steel, movement_type Automatic (cal. 6R35, hand-winding + hacking), water_resistance_m 200, crystal_type Sapphire (curved, AR-coated inner surface), dial_color Black (gradient/textured), strap_type Leather (deployant buckle, standard config -- steel bracelet is a paid option, not default). Cross-verified: Seiko/dealer listing copy (WatchCharts, Japan-OnlineStore, ShoppingInJapan) for case/movement/WR/crystal, watchclicker.com hands-on review for dial/strap. NOTE: this row stores reference as the combined string SBDC119/SPB159 (JDM/international code pair for the same physical watch) rather than using the alt_references field the way ADR-0005 established for exactly this case (see SSC915/SBDL099) -- flagged separately via follow_up, not restructured here.