Seiko

Prospex — Marinemaster

Ref. SLA079 · 42mm · Automatic · Stainless steel · MSRP $2,900.00

Market research

Authorized dealer

Asking $2,320–$2,900

Suggested ceiling ~$2,320

full set · single_source

Top of range matches catalog MSRP ($2,900) exactly. Secondary/used market data (Loupe aggregator showed a wider $1,882-2,898 blended range across 7 listings) wasn't clean enough to split into its own tier/channel this pass -- didn't blend it in here, would need a dedicated secondary-market pass. No suggested_sell -- want-list item, not a flip.

Sources: Topper Fine Jewelers $2,900 (fetched directly, authorized dealer), a second AD listing at $2,320 w/ full factory warranty per search aggregation (not individually fetched), 2026-08-08

Spec

Diameter
42mm
Lug width
20mm
Movement
Automatic
Case material
Stainless steel
Crystal
Sapphire
Dial color
Black
Water resistance
300m
Strap/bracelet
Bracelet

Source note

2026-08-08 backfill round 9: case_material Stainless steel, movement_type Automatic (cal. 8L35, 50h power reserve, 26 jewels), water_resistance_m 300, crystal_type Sapphire (dual-curved, AR-coated inner), dial_color Black (textured matte), strap_type Bracelet (stainless steel). Cross-verified: seikowatches.com official spec page, Time and Tide hands-on, Monochrome-watches, Exquisite Timepieces.