Panerai Mare Nostrum Mare Nostrum Steel

Reference PAM00300

Panerai Mare Nostrum Steel

About this watch

The Panerai PAM00300 Mare Nostrum Steel is a masterpiece that embodies the essence of Panerai's heritage. This limited-edition watch features a hand-wound chronograph movement, powered by the Panerai caliber OP XXV. The 52mm stainless steel case is a bold statement piece, perfect for both casual and formal events. The sapphire glass adds an extra layer of luxury, ensuring that your watch remains pristine even with daily wear. The black dial strikes a perfect balance between readability and style, while the open case back allows you to admire the intricate workings of the OP XXV movement. With only 99 units produced, this timepiece is a true collector's item, not just for its stunning design but also for its historical significance as a piece of horological art.
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Key Features

  • Hand-wound chronograph movement
  • Stainless steel case with sapphire glass
  • Open case back with intricate OP XXV movement
  • Limited edition of 99 units produced in 2010
  • Chronograph function with column wheel design
  • Large diameter of 52mm and lug width of 27mm
  • 30 meter water resistance

Specifications

Brand
Panerai
Family
Mare Nostrum
Model
Mare Nostrum Steel
Reference
PAM00300
Movement
op-xxv
Movement Features
  • Hours, Minutes, Small Seconds
  • Chronograph, Column wheel
Case
Stainless Steel 52mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
30

Current Listings

[WTS] Panerai Radiomir 3 Days – 47mm - Solid White Gold - PAM00376

Panerai Radiomir 3 Days – 47mm - Solid White Gold - PAM00376

Panerai - PAM00376 · $11,950
This Panerai Radiomir PAM376 is a bold, luxurious watch with a 47mm solid white gold case and an iconic sandwich California dial.

  • Condition: Excellent (99%)
  • Case material: Solid 18k white gold
  • Case size: 47mm
  • Water resistance: null
Posted at
Dec 13, 2025, 2:20 PM
Active
View listing on r/WatchExchange
[WTS] Panerai Radiomir Chronograph - PAM00369 – 42mm

Panerai Radiomir Chronograph - PAM00369 – 42mm

Panerai - PAM00369 · $4,500
A rare Panerai Chronograph that combines the vintage Radiomir silhouette with an automatic chronograph. The 42mm stainless steel case has a refined presence on the wrist, and the watch is powered by the OP XXIII calibre self-winding movement.

  • Condition: very good pre-owned
  • Case size: 42mm
  • Water resistance: 100m depth rating
  • Movement power reserve: unspecified
Posted at
Dec 13, 2025, 2:17 PM
Active
View listing on r/WatchExchange
[WTS] Panerai PAM00321 Luminor GMT 3 day $5590

Panerai PAM00321 Luminor GMT 3 day $5590

Panerai - PAM00321 · $5,590
  • Price: $5590
Posted at
Dec 12, 2025, 11:24 AM
Active
View listing on r/WatchExchange
[WTS] Panerai Luminor 1950 10 Days GMT Ceramica 44mm Black Dial PAM00335 3 Straps Complete

Panerai Luminor 1950 10 Days GMT Ceramica 44mm Black Dial PAM00335 3 Straps Complete

Panerai - PAM00335 · $8,250
This Panerai Luminor 1950 10 Days GMT Ceramica is a 44mm watch featuring a black dial.

  • Condition: Very good condition, rated at 9.9/10
  • Straps: 3
  • Case size: 44mm
Posted at
Dec 12, 2025, 10:57 AM
Active
View listing on r/WatchExchange
[WTS] Panerai Luminor Marina 1950 3 Days Automatic 44mm Titanium Brown Dial PAM00351 Complete

Panerai Luminor Marina 1950 3 Days Automatic 44mm Titanium Brown Dial PAM00351 Complete

Panerai - PAM00351 · $4,750
A Panerai Luminor Marina 1950 3 Days Automatic in titanium with a brown dial, featuring a 44mm case.

  • Condition: Very good condition, rated at 8.9/10
  • Case size: 44mm
  • Case material: titanium
  • Dial color: brown
Posted at
Dec 12, 2025, 10:56 AM
Active
View listing on r/WatchExchange
[WTS] Panerai PAM00388 Automatic 3 Days In-house Movement $2,999

Panerai PAM00388 Automatic 3 Days In-house Movement $2,999

Panerai - PAM00388 · $2,999
Up for sale is the Panerai Radiomir 8 Days in great condition. This Radiomir has a uncluttered sandwich dial and features like small seconds, numeral 9, date, and jumping hour hand to change timezone without stopping the minute and second hand.

  • Condition: pre-owned, excellent timekeeping with no damage or scratches
  • Movement Components: 197 parts, 28 jewels
  • Vibrations Per Hour: 28800 vph
  • Power Reserve Hours: 72 hours
Posted at
Dec 11, 2025, 4:45 PM
Active
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[WTS] Panerai Radiomir Black Seal PAM00380 45mm | FRESH SERVICE

Panerai Radiomir Black Seal PAM00380 45mm | FRESH SERVICE

Panerai - PAM00380 · $2,999
A Panerai Radiomir Black Seal PAM00380 in 45mm, recently serviced by Panerai and comes with a warranty until July 2026.

  • Condition: like new
  • Case size: 45mm
  • Service status: fresh service
  • Warranty expiration date: July 2026
Posted at
Dec 10, 2025, 5:27 PM
Active
View listing on r/WatchExchange
[WTS] Panerai Radiomir Chronograph - PAM00369 – 42mm

Panerai Radiomir Chronograph - PAM00369 – 42mm

Panerai - PAM00369 · $4,550
A rare Panerai Chronograph that combines the vintage Radiomir silhouette with an automatic chronograph, featuring a smooth 42mm stainless steel case and a clean black dial.

  • Condition: very good pre-owned
  • Case Size: 42mm diameter
  • Water Resistance: 100m depth rating
  • Movement: OP XXIII calibre self-winding
Posted at
Dec 6, 2025, 1:07 PM
Active
View listing on r/WatchExchange
[WTS] Panerai Luminor Marina 1950 3 Days Automatic 44mm Titanium Brown Dial PAM00351 Complete

Panerai Luminor Marina 1950 3 Days Automatic 44mm Titanium Brown Dial PAM00351 Complete

Panerai - PAM00351 · $4,750
A Panerai Luminor Marina 1950 3 Days Automatic watch featuring a 44mm titanium case and brown dial.

  • Condition: Very good condition, rated at 8.9/10
  • Case material: titanium
  • Diameter: 44mm
  • Included accessories: inner & outer boxes, strap change tools, booklets, stickers, rubber strap, and papers
Posted at
Dec 5, 2025, 10:48 AM
Active
View listing on r/WatchExchange