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Seiko Prospex “Steelmaster” SPB185

Seiko - SPB185 · $5,500

Case material: stainless steel
Case diameter: 41mm

Posted at

Feb 7, 2026, 6:45 PM

Active

View listing on r/WatchExchange

Marine Master 200 aka Baby MM aka Steel Master- SBDC125 SPB185

Seiko - SBDC125 SPB185 · $600

A JDM 1968-style diver with a 42 mm steel case and a clean black dial, featuring a 6R35 automatic movement and a smooth unidirectional bezel.

Condition: Like new
Movement Type: Automatic
Movement Caliber: 6R35
Jewels: 24

Posted at

Jan 9, 2026, 2:33 PM

Sold

Seiko 41mm Sub Mod OEM SPB185 Dial

Seiko - SPB185 · $200

This Seiko SPB185 Sub Mod features a NH35 movement with display caseback, an OEM dial, and comes with multiple bracelet options.

Bracelet options: jubilee,oyster,nato
Movement: NH35
Dial: OEM Seiko SPB185 dial w/ C3 lume

Posted at

Nov 1, 2025, 2:17 PM

Expired

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SPB185

Seiko - SPB185 · $649

A Seiko SPB185, a stainless steel diver's watch with a 6R35 movement. The watch has a bezel and chapter ring that align well, but the owner finds it too austere due to its lack of color.

Condition: Brand new in box
Shipping included: true
Wrist size compatibility: 7 inches (18cm)
Case size: 40mm diameter

Posted at

Oct 25, 2025, 2:59 PM

Sold

Seiko Baby Marinemaster SPB185

Seiko - SPB185 · $580

The Seiko Baby Marinemaster SPB185 is a 42mm wide, 12.5mm thick watch featuring a sapphire crystal and 6R35 movement, with a water resistance of 200m.

Condition: great condition with very minimal scratches
Case width: 42mm
Case thickness: 12.5mm
Water resistance: 200m depth rating

Posted at

Sep 3, 2025, 9:43 PM

Expired

View listing on r/WatchExchange