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Portsea - Heritage Navy

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Portsea - Heritage Navy

USD 420.59

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Classic Marine Style

The Portsea collection represents our modern take on the classic 'Deck Watch' timepiece style, which is traditionally characterised by clean white dials and arabic numerals enclosed by 'railroad' minute markers. 

Deck watches were popular among navy and merchant sailors in the early 20th century, particularly in WW1. They were originally made as pocket watches with hand-wound mechanical movements and were the successor to the original 'marine chronometer' style sea-clocks of the 18th century, which mariners used to calculate longitude by means of celestial navigation. 

Portsea Heritage



The Portsea Heritage is powered by the robust Seiko Calibre NH35 self-winding mechanical movement with a date complication, 40 hour power reserve and a 21,600bph beat rate for a smooth sweep of the second hand.

The multi-layered dial features a unique moulded ceramic main disc which gives the Portsea a sense of depth and detail, capped off by classic blued hands with our signature "M" counter-balance. 

The Portsea is completed by surgical grade 316L stainless steel casing, an anti-reflective sapphire crystal lens and padded leather straps.

Portsea Heritage


Built In Melbourne

In 2017 we opened a new workshop as part of our new inner-city MWC Showroom. Every Portsea watch is expertly hand assembled locally by our dedicated technical team in accordance with our own rigorous quality control standards. Our watch technicians also handle all servicing and support issues in-house, in line with our 2 year guarantee. 

The Workshop



  • Case Material - 316L Stainless Steel
  • Case Diameter - 40mm
  • Case Thickness - 13mm
  • Movement - Seiko Cal. NH35 Automatic
  • Crystal - Flat Anti-Reflective Sapphire
  • Dial - Blue Ceramic
  • Hands - Silver
  • Strap - 20mm 
  • Water Resistance - 100m/10ATM
  • Warranty - 24 Months


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